PDF Editing and Annotation Tools

Choose the right tool for adding notes, signatures, stamps, page numbers, and other document updates.

Pick the exact task below to open the tool page that best matches what you need to do.

When to use these editing tools

This category is for documents that stay in PDF format while you add information, polish the layout, or prepare the file for signing and review.

If you already know the specific action you need (like signing, filling forms, or adding page numbers), go directly to that tool page for the fastest path to your goal.

Quick access to popular tools

These are the most commonly used tools in this category. Click to go directly to the tool page.

Edit PDF

Use this for general PDF editing, annotations, and markup tasks.

Sign PDF

Use this for adding signatures to documents and approval workflows.

Fill PDF Form

Use this when you need to complete fields in an existing form.

Add Watermark

Use this to add ownership marks, draft labels, or branding to your PDFs.

Start with the task that matches your document

These are the strongest entry points when you already know the update you need to make.

Need to annotate or mark up a PDF?

Edit PDF

Use this page when you want comments, highlights, shapes, text, or redactions in one place.

Edit PDF files online. Add text, images, annotations, highlights, and shapes to your documents.

Open Edit PDF

Need to add a signature?

Sign PDF

Go straight here for typed, drawn, or uploaded signatures without wading through broader editing tools.

Add electronic signatures to PDF documents. Draw, type, or upload your signature.

Open Sign PDF

Need to complete a PDF form?

Form Filler

This is the clearest path when the file already has fields and you just need to fill them in.

Fill PDF forms online. Complete interactive PDF forms without printing.

Open Form Filler

Common use cases

•Reviewing and approving contracts with comments and signatures
•Filling out application forms, tax documents, or registration paperwork
•Adding watermarks to protect intellectual property or mark document status
•Annotating research papers, legal briefs, or technical specifications for collaboration
•Adding page numbers and headers to finalize document formatting before distribution

Important notes

•All editing happens in your browser - files are never uploaded to any server
•Save your work frequently when making multiple edits to avoid losing changes
•Digital signatures added here are visual only - for legally binding signatures, use certified signature tools
•Some PDF features like form field validation or JavaScript actions may not be preserved after editing
•For best results, work with PDFs that are not password-protected or have editing restrictions