✅ Key Features:

🗂️ PDF Upload and Display

Upload any .pdf file from local storage.

Renders all pages of the PDF using PDF.js with scalable canvas for high quality.

✏️ Annotation Tools

Select Tool: Move, resize, and modify existing annotations.

Pencil Tool: Freehand drawing with customizable color.

Text Tool: Add editable text anywhere on the PDF.

Eraser Tool: Remove annotations by clicking/dragging over them.

🎨 Color Picker

Real-time color selection for drawing and text tools.

Preview of current selected color with a stylish circular swatch.

⬇️ Download Annotated PDF

Combines original PDF and annotations into a new PDF.

Uses PDF-lib to embed drawings/text as images onto the corresponding pages.

PDF.js: Renders PDF pages into
.

Fabric.js: Enables annotation layers and interaction with canvas objects.

PDF-lib: Embeds annotations onto the final PDF output.