Guilherme Pereira
Staff
Rank: #4
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[Html2PdfConverter] Html2PdfConverter FAQ
Question
Forge
PDF
Html2PdfConverter
Forge component by Miguel 'Kelter' Antunes
72
Published on 02 Jun 2020

Hi Guys,


While helping to maintain this component I’ve got several questions regarding it’s configuration and usage.


The Html2PdfConverter component is a wrapper around the wkhtmltopdf command line tool that generates pdf documents or images based on web pages.

This post is written as a FAQ with the most common questions collected over time and separated by category


Installation/Configuration/Troubleshooting


Q) Does this component work on the free Personal Environment?

A) Yes. It works on both personal and enterprise cloud and also on on premises installations.


Q) What version of wkhtmltopdf should I install?

A) The latest version tested on an OutSystems PaaS enterprise as well as a personal environment is 0.12.6.


Q) What binaries should I upload?

A) The binaries for windows include two executables and a few dlls. You should upload each exe (wkhtmlpdf.exe and wkhtmlimage.exe) to the correct places as well as the accompanying dlls. 

The linux versions do not have dlls only the binaries (wkhtmlpdf and wkhtmlimage)

You can find more instructions on the windows installation here


Q) I’m having troubles uploading the binaries. What can I do?

A) This issue is usually related with network configuration. I suggest using google chrome as it has a nice progress indicator and sometimes you can see it reach 100% and get back to 0%.  

In those cases the best recommendation I can give is to use a different network or a wired connection (it has worked on most of the cases).

Some community members have worked around by extending the max request length and timeout by using Factory configuration to change the web.config. I never had the need to try this approach but you can find more details here


Q) I cannot export. I’m getting a blank page. What can I do?

A) There can be several reasons for this:

  • First and foremost if you’re using an on premises installation log onto the machine and navigate to the HtmltoPdfConverter folder and execute the component from the command line. The output is usually a good indicator of potential problems.

  • If you cannot log into the machine activate the LogDebugMessages option on the Administration page of the component and check service center logs.

  • Make sure the page you’re trying to print is accessible from the server.

  • On some occasions the machine cannot reach when using the machine domain or localhost due to bad dns resolving/configuration. Try to use the IP or 127.0.0.1 instead or log into to the machine and try to access the URL from the browser.

  • There’s a known incompatibility between the component and a SilkUi based widget to detect the mobile devices because it is blocking the execution of javascript on the component. In such scenarios create an empty theme not SilkUi based and use it as the theme for the webflow of the page you’re trying to export.


Q) My content is broken when exporting to pdf. Why?

A) If you’re using a responsive theme (London, SILK or other) then you need to understand that the default page size is much closer to a tablet resolution than a desktop so the elements will break accordingly. Try to fix your page to have a good L&F on a tablet resolution and it should work when exporting A4 out of the box.

If you're using a Table Records you can add a NoResponsive class to the widget so it won't break in that resolution


Q) I cannot export I’m getting the invalid permissions screen. What can I do?

A) The screen to import needs to be accessible anonymously. This is because the component runs on a different session without the possibility to trigger the login.


Q) Sometimes the export works sometimes doesn’t. What’s wrong?

A) Please validate if you have more than one front end in your service center and if so activate the farm mode on the administration page. Also validate the potential network issues on the several frontends.


Q) I'm getting some performance degradation because of the component.

A) wkhtml is known to be memory and cpu intensive when the pages are large this situation can be made worse if you try to export several pdfs at the same time.

In order to minimize the impact you should try and reduce your pdf size so the generation is as less intensive as possible.

Starting with version 1.1.13 a new feature was implemented so the processes run with low priority. This is activated by default and configurable in the administration page of the component. It's recommended to be used.

If you cannot control if more than one request is done at the same time (usually when you export in a screen on an application with several users this is hard to control) it is recommended to implement a queuing system where you store the pdf generation requests and then process them one by one in order to avoid more than one instance of the executable to run.


Usage


Q) If the screens to export have to be anonymous how can I secure them?

A) The best way is by generating a token and passing it to the page to generate and on the preparation of that page validate the token. See this post for guidelines for a possible implementation.


Q) How can I keep my content from splitting from one page to the other?

A) Use CSS page-breaks to control the behavior:


Q) How can I control the header on my pages?

A) By using css.

  • If you want to prevent your table header to be repeated on other pages, you should apply the following CSS styles on the page that you are printing:

  • If you want to maintain your table header repeated on all pages but still ensure that the content don't overlap you can try the below solution:




Q) Does the component allows me to do X?

A) Check the component command line parameters and try to use them accordingly.


Support


Q) Is this component the official way of exporting PDF with the OutSystems Platform. Can I email OutSystems support with questions about it?

A) The Html2Pdf is a community driven initiative and not supported by OutSystems. The team is composed by OutSystems and Non OutSystems personnel that work in a best effort mode to keep it running and assist the community with the questions  


Q) What alternatives do I have to this component.

A) There are several alternatives on the forge. Just search for pdf


13
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on 2016-03-24
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Trish Tye
Rank: #257

Hi

Regarding:


Q) If the screens to export have to be anonymous how can I secure them?

A) The best way is by generating a token and passing it to the page to generate and on the preparation of that page validate the token.

Can you point me to any instructions on how to do that?

Thanks

Trish

0
0
on 2017-01-31
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Guilherme Pereira
Staff
Rank: #4

Trish Tye wrote:

Hi

Regarding:


Q) If the screens to export have to be anonymous how can I secure them?

A) The best way is by generating a token and passing it to the page to generate and on the preparation of that page validate the token.

Can you point me to any instructions on how to do that?

Thanks

Trish

Hi Trish,

This should be quite easy to accomplish by:

1) Create a table to store the authentication tokens and an expiration date

2) Before generating the PDF you generate the token and store it on the table with an expiration date time

3) Pass the token to the anonymous page via a URL parameter

4) On the preparation of page you validate the token against the DB and if valid first you invalidate the token and then proceed. If the validation fails you can throw an exception

With this approach you can keep your page anonymous but secure and use it to generate the PDF.

Hope this helps,

Guilherme

2
0
on 2017-01-31
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Trish Tye wrote:

Hi

Regarding:


Q) If the screens to export have to be anonymous how can I secure them?

A) The best way is by generating a token and passing it to the page to generate and on the preparation of that page validate the token.

Can you point me to any instructions on how to do that?

Thanks

Trish

It's recommenced share your session. You can do it with --cookie ASP.NET_SessionId "+GetSessionId()+" --cookie Users.sid "+GetCookie("Users.sid") parameters. Remember if you use other user provider than "Users" then cookie name is different "<Name of user provider>.sid". This works with wkhtmltopdf 0.12.5 version


1
0
on 2018-07-16
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Jyotiranjan Dash
Rank: #43750

Hi,

We have used HTMLTOPDFConverter which internally called wkhtmltopdf exe for converting OutSystems content to PDF. It worked fine with English characters. but when Chinese presents in the page, while converting into PDF, Chinese characters are not render correctly. Page is displayed correctly on the browser. but output PDF file generate from wkhtmltopdf from page, Chinese characters are render as square.

If we build simple html page in notepad ( clean HTML ) with Chinese character, PDF file print perfectly. 

When simple page developed with service studio. While access this page in the browser it works properly. But htmltopdf converter component is not render Chinese characters correctly. We have notice any page developed on service studio added extra html ( css, js file ) which causes the problem. Appreciate any suggestion from your side in resolving the problem.


0
0
on 2018-02-26
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Guilherme Pereira
Staff
Rank: #4

Hi Jyotiranjan,


Have you tried to install wkhtmltopdf locally and run it from the cmdline? Does it work?

Have you done it from the server? What were the results?


In any case after googling a bit looking for chinese character support for wkhtmltopdf it seems that in order for it to work the necessary fonts need to be installed on the server (where the component actually runs).

I'd recommend taking a look at this post and try to set up the font and if necessary install it on the server.


Let us know if you are able to solve your issue

Cheers,

Guilherme

0
0
on 2018-02-26
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Jyotiranjan Dash
Rank: #43750

Hi Guilherme,

Thanks for the reply. we have downloaded latest version from wkhtmltopdf from "
https://wkhtmltopdf.org/downloads.html" ( Bleeding Edge ). Now Chinese characters are getting printed. Now we have another problem. we are not able to pass footer. Previously version footer can be passed with --footer-html. Please let us know what is correct way to pass footer

we are expecting to pass other argument.


--encoding ISO10646 -O Landscape -B 60 --header-font-size 10 --header-right Page[page]/[toPage] --footer-html https://<server>/FooterPage.htm


Regards,

Dash 


0
0
on 2018-02-27
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Guilherme Pereira
Staff
Rank: #4

Hi Dash,

According to wkhtml documentation --footer-html should be the parameter.

Have you tried locally from the command line? Does it work?

If not I recommend you to reach out directly on their forums to see if they can help because it is not something we can control on the wrapper.

Let us know if you were able to solve the issue

Cheers,

Guilherme

0
0
on 2018-02-27
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Ravi Joshi
Rank: #45518

Hi Guilherme,

The wkhtml documentation link you have shared is for version 0.12.4 (with patched qt). We cannot use that since it does not support Chinese character encoding. In order to solve that we installed the alpha version of wkhml. The Chinese char encoding issue is resolved with the alpha version, but now we are having problem setting page footer. The --footer-html parameter is not available in the alpha version.

We are looking for a solution where we can convert an HTML page having Chinese chars and a footer to PDF. Any help on this topic will be appreciated.


Regards,

Ravi


0
0
on 2018-02-27
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Guilherme Pereira
Staff
Rank: #4

Hi Ravi,


Unfortunately I do not have a solution or workaround for the library behavior. You may check with wktml to see if the can produce a version that works well with both or take their source do the changes and compile it yourself.


But i’ve never done it before and i think it may not be that easy.


You could try to add your footer via an iframe and embed it on the page with an expression.

Can you try that?


Cheers,

Guilherme

0
0
on 2018-02-27
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Esther Mc Lean
Rank: #32116

Brilliant component, however it is degrading our environment performance severely.  Has anybody else experienced this and is there a workaround?

0
0
on 2018-03-19
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Guilherme Pereira
Staff
Rank: #4

Hi Esther,


Without more details I'm unsure if this is your case but the wkhtmltopdf tend to use a lot of memory if the pdf to be generated is very large.

What's the size of the final pdfs? And with what frequency it is being generated?

Neither the component nor the underlying library (wkhtmltopdf) have any features to limit memory consumption so in terms of workarounds I can only recommend for you to try and rearchitect your application to generate the pdf assynchronously or perhaps taking advantage of zones (and isolating the component in a separate server) if supported in your configuration.

Let us know if you are able to find a solution.

Cheers,

Guilherme

0
0
on 2018-03-19
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Esther Mc Lean
Rank: #32116

Thank you for your reply.  The documents are not very large, 5 - 6 pages, average size 200kb - 1mb.  These are generated approximately 10 times a day, so not heavy usage.  

1
0
on 2018-03-19
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Guilherme Pereira
Staff
Rank: #4

Esther Pedro wrote:

Thank you for your reply.  The documents are not very large, 5 - 6 pages, average size 200kb - 1mb.  These are generated approximately 10 times a day, so not heavy usage.  

And when you say the component is degrading the environment can you be more specific to what's causing the degradation (memory, cpu usage) and how did you relate with the component?



0
0
on 2018-03-20
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Esther Mc Lean
Rank: #32116

Good day Guilherme

We logged a support ticket with Outsystems last week and this occurred again yesterday.  This was their reply:

I noticed that the FE server of your Production environment was having a high CPU usage since last Friday around 10:30 AM UTC. Accessing the FE server, I could see that the process responsible for the high CPU usage was related to the HTML2PDFConverter component [1].

The HTML2PDFConverter components has known issues with high CPU usage, we already had some support cases reporting slowness that ended up being this component excessively consuming CPU. Consuming that the component is not supported by OutSystems, we recommend you opening a thread in the component discussion page regarding this issue.

We'll be waiting for your feedback regarding the current status of the environment.

Here's the link for the reference in this communication:
[1] - https://www.outsystems.com/forge/209/ 

0
0
on 2018-03-20
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Guilherme Pereira
Staff
Rank: #4

Hi Esther,

Thank you for the clarification.

Unfortunately with the information provided by our technical support I cannot give you a better advice other than trying to look for other component that would do the same but doesn't have to run on the machine.

What I can tell you is that this component is used extensively in several customer projects both running on the cloud and on prem without issues that I'm aware of.

The component is something as simple as running an executable, generating a tmp pdf and trigger it's download. Without any more detail to what could be causing the load (e.g antivirus running, server errors on event viewer, etc) it is impossible for me to understand what could be causing it.

So for now the only recommendation I can give you is to look for an alternative that doesn't impact your infrastructure.

Cheers

Guilherme


0
0
on 2018-03-20
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Esther Mc Lean
Rank: #32116

Hi

Thank you for trying to assist.  We will keep you posted if we get any additional information.



0
0
on 2018-03-20
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Guilherme Pereira
Staff
Rank: #4

Hi All,


After talking with some people that had similar performance issues as well as the indication that in some ocasions where the application pool would recycle while the component was being executed would lead to a scenario with zombie processes I've released a new versions 1.1.13 with a couple of experimental features but only for the .NET version.


The first is the ability to execute the processes with less priority (default is true).

The second is activating the EnableRaisingEvent property in order to force the connection between processes so that if the pool is recycled the child processes are killed (details here)


This version is still experimental let me know if you find any issues.


Thanks,

Guilherme

1
0
on 2018-03-21
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Justin James
mvp_badge
MVP
Rank: #7

Guilherme -


Suggest putting the "NoResponsive" trick in this FAQ. :)


J.Ja

0
0
on 2018-03-22
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Guilherme Pereira
Staff
Rank: #4

Justin James wrote:

Guilherme -


Suggest putting the "NoResponsive" trick in this FAQ. :)


J.Ja

Thank Justin. Added.


0
0
on 2018-03-22
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Esther Mc Lean
Rank: #32116

Thank you very much.  We will look at your suggestion and provide feedback.

0
0
on 2018-03-22
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Suraj Borade
Rank: #140

Hi Guilherme,

Interesting post for FAQs. It helped to resolve the problems. Thanks a lot.

Regards,

Suraj Borade

1
0
on 2018-05-09
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Sathish Ravibalan
Rank: #30146

Dears,

Please kindly add one section for WHITE SPACE ISSUE which is common faced by many who use this module with Simple Reports.

Regards,

Sathish

0
0
on 2018-05-13
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Guilherme Pereira
Staff
Rank: #4

Hi Satish,

I’m unsure to what problem you’re refering to but if it is related with simple reports than you can post on that component support forums for help from the team that maintains it.


Cheers,

Guilherme

0
0
on 2018-05-13
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Luís Cardoso
mvp_badge
MVP
Rank: #129

Hello,

How can I use this component on  free Personal Environment?


When I try to upload the binaries files in administration page, I alwasy got this error: "Access to the path 'D:\User\binaries' is denied."

What should be definied in Binaries directory?


Thanks

0
0
on 2018-08-04
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Justin James
mvp_badge
MVP
Rank: #7

Luís Cardoso wrote:

Hello,

How can I use this component on  free Personal Environment?


When I try to upload the binaries files in administration page, I alwasy got this error: "Access to the path 'D:\User\binaries' is denied."

What should be definied in Binaries directory?


Thanks

I don't know if this is fixed yet, but for a while the instructions for PE vs. non-PE were backwards on that step. Try following the other set of instructions and see if that helps.

J.Ja


0
0
on 2018-08-04
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Guilherme Pereira
Staff
Rank: #4

Luís Cardoso wrote:

Hello,

How can I use this component on  free Personal Environment?


When I try to upload the binaries files in administration page, I alwasy got this error: "Access to the path 'D:\User\binaries' is denied."

What should be definied in Binaries directory?


Thanks

Hi Luis,


You just need to follow the instructions on that field and set the flag to true so the binaries are written in the running dir.

Cheers,

Guilherme

2
0
on 2018-08-04
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Luís Cardoso
mvp_badge
MVP
Rank: #129

Guilherme Pereira wrote:

Luís Cardoso wrote:

Hello,

How can I use this component on  free Personal Environment?


When I try to upload the binaries files in administration page, I alwasy got this error: "Access to the path 'D:\User\binaries' is denied."

What should be definied in Binaries directory?


Thanks

Hi Luis,


You just need to follow the instructions on that field and set the flag to true so the binaries are written in the running dir.

Cheers,

Guilherme

Thanks for the tip!


0
0
on 2018-08-07
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Reuben Mark Mandap
Rank: #41288

Hi,

Kinldy help us on how to resolve this error ("Could not find file 'C:\Windows\TEMP\TEMPCJFKFODSHN00000000000000000000000000000000.pdf'").

I hope you can help us on this. Thank you

0
0
on 2018-08-07
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João Heleno
mvp_badge
MVP
Rank: #169

Is it just me or the Bleeding Edge version is a bit more limited?

It doesn't accept arguments like -R 0 or -L 0... which I needed to try.

0
0
on 2018-09-06
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rob knipscheer
Rank: #26144

I'm using this in combination with simple reports with PDF, and when I click the download button (That generates a pdf through html-to-pdf, It is producing a pdf but with the above content.

Is there a known solution for this? I do not have the knowledge to check permission errors (I did check the webscreen anonymous role).

EDIT: We were using this before and it did work at the time. However, after not having checked it for a month or maybe two, it now behaves as described above.

0
0
on 2018-11-09
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Guilherme Pereira
Staff
Rank: #4

rob knipscheer wrote:

I'm using this in combination with simple reports with PDF, and when I click the download button (That generates a pdf through html-to-pdf, It is producing a pdf but with the above content.

Is there a known solution for this? I do not have the knowledge to check permission errors (I did check the webscreen anonymous role).

EDIT: We were using this before and it did work at the time. However, after not having checked it for a month or maybe two, it now behaves as described above.


Hi Rob,


I'm not familiar with simple reports so my ability to help is limited, From the error it seems that the page Test for the espace RandartoPDF is somewhat missing. Have you tried to acess it directly? Does it work?

If not can you publish the espace RandartoPDF and try again?


For simple reports troubleshooting you are probably better server in that component specific forums.


Cheers,

Guilherme

0
0
on 2018-11-09
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rob knipscheer
Rank: #26144

All right, thanks for trying to help!

I have also posted in their forum space, so hoping to get an answer there.

The page test does exist at the url that is being referenced, so therefore I'm thinking it's a permission issue.

0
0
on 2018-11-09
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inesp
Rank: #744

rob knipscheer wrote:

All right, thanks for trying to help!

I have also posted in their forum space, so hoping to get an answer there.

The page test does exist at the url that is being referenced, so therefore I'm thinking it's a permission issue.


Hi Rob. 

Were you able to get a solution for this? I am trying to use "--header-html <url>" when the url is from a page on the outsystems environment and I'm also getting the error. However, it works if I use "www.google.com" instead, so I also think it is related to permissions. 

Any ideas?

Maria

0
0
on 2018-11-21
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rob knipscheer
Rank: #26144

mariap wrote:

rob knipscheer wrote:

All right, thanks for trying to help!

I have also posted in their forum space, so hoping to get an answer there.

The page test does exist at the url that is being referenced, so therefore I'm thinking it's a permission issue.


Hi Rob. 

Were you able to get a solution for this? I am trying to use "--header-html <url>" when the url is from a page on the outsystems environment and I'm also getting the error. However, it works if I use "www.google.com" instead, so I also think it is related to permissions. 

Any ideas?

Maria

Hi Maria,

We did find out what the problem was, currently we are using the 'simple reports with pdf' plugin to get an html page that has the layout of a pdf. Then we print it through google's options, you have to make sure though that it prints the background, it's a checkbox in the printmenu.

https://www.outsystems.com/forums/discussion/42134/simple-reports-with-pdf-404-not-found-no-content-in-pdf/ See this topic for the three issues we encountered.


0
0
on 2018-11-23
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Helena Lameiro
Rank: #323

HI everyone,

I'm trying to upload the binary files to configure this component, on the administrator tab in: \HtmlToPdfConverter/HowToImage.aspx

I already tryed different network connections, followed faq instructions and the same error appears. Could someone help us on this?

0
0
on 2018-11-13
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Guilherme Pereira
Staff
Rank: #4

Hi Helena,


What version are you using? Are you using a cloud or on prem environment?


From the screenshot it seems you're using an old version that does not allow for the definition of the binaries directory path. On recent cloud environments you need to be able to set the option and specify a path (the default covers a typical .NET installation)


Cheers,

Guilherme

0
0
on 2018-11-13
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Ruben Rodrigues
Rank: #4596

Hello Helena,


The problem that you are having it's probably because you don't have permissions to write in an existing folder.

How I solve the issue, was creating a folder and inside I put the binaries manually (by copy, paste). I had full permissions inside the folders that I created, that's why I could copy the binaries.

After that, I uncheck the option "Write Binaries to Running Dir" in the administrator tab of the component, and referenced the path of the folder with binaries that I created. After that, the component recognized automatically the binaries.

Cheers,

Ruben

0
0
on 2018-11-13
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Helena Lameiro
Rank: #323

HI Ruben and Guilherme, It was problem of network. Tried a 4th one and could get it.

0
0
on 2018-11-13
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Jorge Martins
mvp_badge
MVP
Rank: #19

Hi Sam,

Apart from the step-by-step instructions I gave you on your other post... you have an installation instructions link on the installed component's main page... with detailed instructions and screenshots.

0
0
on 2019-03-29
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Sam Dyse
Rank: #25066

Jorge Martins wrote:

Hi Sam,

Apart from the step-by-step instructions I gave you on your other post... you have an installation instructions link on the installed component's main page... with detailed instructions and screenshots.


Yes, thank you!  I'm working on it now.

0
0
on 2019-03-29
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sai charan
Rank: #1039

Hi,

I tried to download from https://wkhtmltopdf.org/downloads.html '

Windows (MinGW-w64)32-bit / 64-bitfor Windows XP/2003 or later; bundles gcc DLLs

'

But it is saying that the path does not contain binaries folder. 

Thanks,

Saicharan

0
0
on 2019-04-12
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Guilherme Pereira
Staff
Rank: #4

sai charan wrote:

Hi,

I tried to download from https://wkhtmltopdf.org/downloads.html '

Windows (MinGW-w64)32-bit / 64-bitfor Windows XP/2003 or later; bundles gcc DLLs

'

But it is saying that the path does not contain binaries folder. 

Thanks,

Saicharan

HI,


Is it saying when?

What kind of environment are you using?

Can you share a screenshot of your installation page?


Thanks,

Guilherme


0
0
on 2019-04-12
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sai charan
Rank: #1039

Guilherme Pereira wrote:

sai charan wrote:

Hi,

I tried to download from https://wkhtmltopdf.org/downloads.html '

Windows (MinGW-w64)32-bit / 64-bitfor Windows XP/2003 or later; bundles gcc DLLs

'

But it is saying that the path does not contain binaries folder. 

Thanks,

Saicharan

HI,


Is it saying when?

What kind of environment are you using?

Can you share a screenshot of your installation page?


Thanks,

Guilherme


Hi Guiherme,

Thank you !!

I was just able to upload binaries in the administration page. But however I am finding the below error while trying to execute pdf generation.

Could not find file 'C:\Users\CSBDFD~1\AppData\Local\Temp\TEMPSTLDIKXBKH00000000000000000000000000000000.pdf'. Qt: Untested Windows version 10.0 detected! SetProcessDpiAwareness failed: "COM error 0xffffffff80070005 (Unknown error 0x0ffffffff80070005)" Error: This version of wkhtmltopdf is build against an unpatched version of QT, and does not support more then one input document. Exit with code 1, due to unknown error.

Request your help on this please.

Thanks,

Saicharan


0
0
on 2019-04-12
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Guilherme Pereira
Staff
Rank: #4

sai charan wrote:

Guilherme Pereira wrote:

sai charan wrote:

Hi,

I tried to download from https://wkhtmltopdf.org/downloads.html '

Windows (MinGW-w64)32-bit / 64-bitfor Windows XP/2003 or later; bundles gcc DLLs

'

But it is saying that the path does not contain binaries folder. 

Thanks,

Saicharan

HI,


Is it saying when?

What kind of environment are you using?

Can you share a screenshot of your installation page?


Thanks,

Guilherme


Hi Guiherme,

Thank you !!

I was just able to upload binaries in the administration page. But however I am finding the below error while trying to execute pdf generation.

Could not find file 'C:\Users\CSBDFD~1\AppData\Local\Temp\TEMPSTLDIKXBKH00000000000000000000000000000000.pdf'. Qt: Untested Windows version 10.0 detected! SetProcessDpiAwareness failed: "COM error 0xffffffff80070005 (Unknown error 0x0ffffffff80070005)" Error: This version of wkhtmltopdf is build against an unpatched version of QT, and does not support more then one input document. Exit with code 1, due to unknown error.

Request your help on this please.

Thanks,

Saicharan


What kind of environment are you using?

Can you share a screenshot of your installation page?


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on 2019-04-12
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sai charan
Rank: #1039

Guilherme Pereira wrote:

sai charan wrote:

Guilherme Pereira wrote:

sai charan wrote:

Hi,

I tried to download from https://wkhtmltopdf.org/downloads.html '

Windows (MinGW-w64)32-bit / 64-bitfor Windows XP/2003 or later; bundles gcc DLLs

'

But it is saying that the path does not contain binaries folder. 

Thanks,

Saicharan

HI,


Is it saying when?

What kind of environment are you using?

Can you share a screenshot of your installation page?


Thanks,

Guilherme


Hi Guiherme,

Thank you !!

I was just able to upload binaries in the administration page. But however I am finding the below error while trying to execute pdf generation.

Could not find file 'C:\Users\CSBDFD~1\AppData\Local\Temp\TEMPSTLDIKXBKH00000000000000000000000000000000.pdf'. Qt: Untested Windows version 10.0 detected! SetProcessDpiAwareness failed: "COM error 0xffffffff80070005 (Unknown error 0x0ffffffff80070005)" Error: This version of wkhtmltopdf is build against an unpatched version of QT, and does not support more then one input document. Exit with code 1, due to unknown error.

Request your help on this please.

Thanks,

Saicharan


What kind of environment are you using?

Can you share a screenshot of your installation page?


Hi,

Thank you!!

I am using trial version of outsystems in my local machine.
Please find the screenshot attached of my environment installed applications.

Thanks,

Saicharan


Capture.PNG

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on 2019-04-15
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Guilherme Pereira
Staff
Rank: #4

Hi,


Can you share a screenshot of your component administration page so we can see how it is configured?


Thanks,

Guilherme

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on 2019-04-15
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sai charan
Rank: #1039

Guilherme Pereira wrote:

Hi,


Can you share a screenshot of your component administration page so we can see how it is configured?


Thanks,

Guilherme

Hi Guilherme,

Sorry to ask, how can I check the component administration details?

Thanks,

Saicharan


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on 2019-04-15
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sai charan
Rank: #1039

sai charan wrote:

Guilherme Pereira wrote:

Hi,


Can you share a screenshot of your component administration page so we can see how it is configured?


Thanks,

Guilherme

Hi Guilherme,

Sorry to ask, how can I check the component administration details?

Thanks,

Saicharan




Capture.PNG

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on 2019-04-15
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Guilherme Pereira
Staff
Rank: #4

Hi Saicharan,


You should access the Administration page (the same page you've used to configure the component).

It should be something like https://<YOUR_SERVER>/HtmltoPdfConverter/Administration.aspx


Thanks,

Guilherme

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on 2019-04-15
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sai charan
Rank: #1039

Guilherme Pereira wrote:

Hi Saicharan,


You should access the Administration page (the same page you've used to configure the component).

It should be something like https://<YOUR_SERVER>/HtmltoPdfConverter/Administration.aspx


Thanks,

Guilherme


Hi Guilherme,

Thank you!! I have uploaded the screen shot . Request you to review it.

Thanks,

Saicharan


Capture.PNG

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on 2019-04-15
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Guilherme Pereira
Staff
Rank: #4

Hi,


At first glance seems well configured. What do you have on the binaries path?


Have you tried to generate a pdf from the component pdf page? Try pointing to google. 


If it doesnt work can you enable the log debug messages option, try the pdf generation and share the logs?


Thanks

Guilherme

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0
on 2019-04-15
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sai charan
Rank: #1039

Guilherme Pereira wrote:

Hi,


At first glance seems well configured. What do you have on the binaries path?


Have you tried to generate a pdf from the component pdf page? Try pointing to google. 


If it doesnt work can you enable the log debug messages option, try the pdf generation and share the logs?


Thanks

Guilherme

Hi Guilherme,

Thank you!!

Attached the files in binary path. 

Yes, I was able to generate the pdf from the component, tried with google.com, pdf is generated successfully. 

But when I try to plugin the component to other application and trying to generate from there, I am facing the error.

Attached the preparation implementation of PDF generation button.

Please let me know if you need any further details.

Thanks,

Saicharan  


Capture1.PNG

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on 2019-04-16
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sai charan
Rank: #1039

sai charan wrote:

Guilherme Pereira wrote:

Hi,


At first glance seems well configured. What do you have on the binaries path?


Have you tried to generate a pdf from the component pdf page? Try pointing to google. 


If it doesnt work can you enable the log debug messages option, try the pdf generation and share the logs?


Thanks

Guilherme

Hi Guilherme,

Thank you!!

Attached the files in binary path. 

Yes, I was able to generate the pdf from the component, tried with google.com, pdf is generated successfully. 

But when I try to plugin the component to other application and trying to generate from there, I am facing the error.

Attached the preparation implementation of PDF generation button.

Please let me know if you need any further details.

Thanks,

Saicharan  




Capture.PNG

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on 2019-04-16
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Guilherme Pereira
Staff
Rank: #4

Hi,


If you are able to generate the pdf for google it means the component is well configued and working properly. Validate if your page is anonymous And follow the instructions on this FAQ for troubleshoot. Start with an empty page in a blank theme and start add bits and pieces of your page to understand what could be causing the error.


Cheers,

Guilherme

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on 2019-04-16
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sai charan
Rank: #1039

Guilherme Pereira wrote:

Hi,


If you are able to generate the pdf for google it means the component is well configued and working properly. Validate if your page is anonymous And follow the instructions on this FAQ for troubleshoot. Start with an empty page in a blank theme and start add bits and pieces of your page to understand what could be causing the error.


Cheers,

Guilherme

Hi,

My page is anonymous, in the expression value of GeneratePDF preparation, I have encoreURL("www.google.com"). I am facing the below error. Any help on this is appreciated.

Could not find file 'C:\Users\CSBDFD~1\AppData\Local\Temp\TEMPSTLDIKXBKH00000000000000000000000000000000.pdf'. Qt: Untested Windows version 10.0 detected! SetProcessDpiAwareness failed: "COM error 0xffffffff80070005 (Unknown error 0x0ffffffff80070005)" Error: This version of wkhtmltopdf is build against an unpatched version of QT, and does not support more then one input document. Exit with code 1, due to unknown error.

Thanks,

Saicharan


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on 2019-04-16
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Jorge Trujillo
Rank: #4684

Hello, I'm having this error and I don't have idea what it is. The HTMLTOPDFConverter was working properly until today. This started happening without any changes.

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on 2020-07-08
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Duarte Grilo
Rank: #599

I had a hard time configuring this component, because the instructions are out of date (at least for Windows). Since version 0.12.3, the mingw package is no longer generated.

So, instead of following the first step of the installation instructions, follow this link to the last working version of wkhtmltopdf: https://github.com/wkhtmltopdf/wkhtmltopdf/releases/0.12.2.4/. Use this package to extract the needed files and upload them to the component.

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on 2020-07-09
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Jelyn
Rank: #6002

Hello Eduardo, 

I had configure the admin page to use the binaries from mingw version.

I created a new role base web application using outsystem and added the GeneratePDF action to the module.

Here's what I done:

1) Create a button in a web screen.  Upon click the button, it should generate the pdf based on data in another web screen (I had url point to actual url of the web screen)

2) When I test the function, I am getting following error:


Detail error log:

Problem generating PDF from HTML, URLs: https://<url>/TestPdfFunction.aspx
at ssHtmlToPdfConverter.RssExtensionHtmlConvertToPdf.MssInternal_GeneratePDF(HeContext heContext, String inParamExecutablePath, String inParamURL, String inParamProxy, String inParamOtherArgs, Boolean inParamLowPriority, Int32 inParamTimeout, Byte[]& outParamPDFBinary, String& outParamMessageErrorOutput, String& outParamMessageOutput)
at ssHtmlToPdfConverter.Actions.ActionGeneratePDF(HeContext heContext, String inParamURL, String inParamProxy, String inParamOtherArgs, Int32 inParamTimeout, Byte[]& outParamPDFBinary, String& outParamMessageOutput)
at ssKNOT.RsseSpaceHtmlToPdfConverter.MssGeneratePDF(HeContext heContext, String inParamURL, String inParamProxy, String inParamOtherArgs, Int32 inParamTimeout, Byte[]& outParamPDFBinary, String& outParamMessageOutput)
at ssKNOT.Flows.FlowMainFlow.ScrnTravelRequests.CommandTestpdfgenerator(HeContext heContext)


However, it work fine when I change the url to google.com. Do you have any idea why I am getting this error?


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on 2020-08-07
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Guilherme Pereira
Staff
Rank: #4

Hi All,

As the bleeding edge / mingw versions are no longer available the FAQ has been updated. The instructions provided by André Pinho in this post are accurate and worked in all the tests I've performed both in an Enterprise PaaS as well as my personal environment.

Cheers,

Guilherme

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on 26th Jan
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