Edit & annotate PDFs online
To edit a PDF online, choose the tool that matches the change: add text and annotations, place a signature, fill or build forms, add page numbers, stamp or watermark pages, or redact sensitive content. Every editing tool here runs entirely in your browser, so nothing is uploaded.
PurePDF has one of the largest free PDF editing toolkits on the web — 15+ tools covering everything from adding a signature to building fillable forms. All editing tools run entirely in your browser, so contracts, forms, and confidential documents never leave your device.
No account, no watermarks, no daily limits. Choose a tool below; each one opens a focused workspace with a live preview so you can see changes before exporting.
Edit & sign
Stamp & label
Navigate & style
Frequently asked questions
Can I edit the existing text inside a PDF?
These tools add content on top of a PDF (text boxes, shapes, highlights, signatures) rather than rewriting the original text layer. To change the underlying text, convert the PDF to Word, edit it there, then convert it back.
Do the editing tools upload my file?
No. Every tool on this page opens and processes the PDF inside your browser tab, so contracts, forms, and confidential documents never leave your device.
Will my edits show up in Adobe Reader?
Yes. Annotations are written as standard PDF annotations and form fields as standard AcroForm fields, so they display and behave correctly in Adobe Acrobat, Preview, Chrome, and mobile PDF apps.
What is the difference between redacting and drawing a black box?
A black box drawn in an editor leaves the text underneath selectable and copyable. Redact PDF removes the content and flattens the result so it cannot be recovered. Always verify by trying to select text in the exported file.
Is there a limit on file size or number of edits?
No server limit, because editing runs on your own device. The practical ceiling is your browser's available memory, and there is no cap on how many files you edit.