Annotate PDF

Draw, highlight, add text and sticky notes on your PDF — move, resize, and edit anything. Free, private, no upload.

Drag & drop a PDF file here

or click to browse your device

How to Annotate PDF Online

Upload your PDF, select a tool from the toolbar (draw, text, highlight, rectangle, circle, or sticky note), and click on the page to add your annotation. Every object you place can be moved, resized, and edited. Navigate between pages, add annotations to any page, then save the annotated PDF.

Annotation Tools Available

Select & Move: Click any annotation to select it. Drag to reposition. Use corner handles to resize. Double-click text to edit.
Draw: Freehand drawing with adjustable color and line width.
Text: Click to place editable text. Double-click to re-edit later.
Highlight: Semi-transparent colored rectangle for highlighting passages.
Shapes: Rectangles and circles with adjustable stroke color and width.
Sticky Note: Yellow note cards with editable text — perfect for review comments.

Common Use Cases

Document review and feedback — mark up contracts, proposals, and reports with comments and highlights. Academic grading — annotate student papers with corrections and notes. Design review — circle areas that need changes, add text comments. Legal review — highlight key clauses, add margin notes, mark sections for discussion.

Privacy — No Upload Required

Your PDF is processed entirely in your browser using fabric.js for the annotation canvas and pdf-lib for saving. Your documents — contracts, medical records, legal files — never leave your device. This is the safest way to annotate sensitive PDFs online.

Frequently Asked Questions

Can I move annotations after placing them?
Yes. Switch to the Select tool and click any annotation to select, drag, resize, or delete it.

Can I edit text after placing it?
Yes. Double-click any text or sticky note to re-enter editing mode.

Do annotations work across multiple pages?
Yes. Navigate between pages using the Previous/Next buttons. Annotations are saved per page and persist when switching.

Does it modify the original PDF text?
No. Annotations are overlaid on top of the existing content. The original PDF text, images, and formatting remain unchanged underneath.