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Edit and annotate

Edit and annotate PDF tools

Open, edit, review, compare, annotate, and build fillable PDF documents.

These tools cover the full range of reviewing and changing a PDF's content — from a quick text fix or image swap in the full editor, to reading it on screen, to marking it up with comments and highlights, to comparing two versions for what actually changed, to building an interactive form from scratch. Pick the one that matches how much you need to change: viewing and annotating don't touch the document's underlying content, while the editor and form builder do.

Edit and annotate PDF tools — questions

Can you edit a PDF for free without Adobe Acrobat?

Yes. These tools run in your browser and let you add or replace text and images, mark the document up with comments and highlights, fill in form fields, and reorganise pages — no desktop software and no account for the core editor. Scanned pages and PDFs with complex embedded-font layouts can limit in-place text editing.

What is the difference between editing and annotating a PDF?

Annotating adds a review layer on top of the page — comments, highlights, drawings, stamps — without changing the underlying content. Editing changes the content itself: the actual text, images, and page layout. Use annotation for feedback and review; use the editor when the document itself needs to change.

Does editing a PDF change the original file?

No. Your selected file is not modified. The tools build a new PDF from your changes, which you download as a separate copy, so the original on your device stays exactly as it was.

Ready to try it yourself?

Every core tool runs free in your browser, no account required.

Open the free PDF editor