Edit & Annotate PDF Online
Add text, signatures, freehand drawings, highlights, and whiteout boxes directly to your PDF pages with 100% in-browser privacy.
Select or drop a PDF to edit
Edit your PDF just like Canva: drag, resize, rotate, annotate text, whiteout, draw signatures, and stamps seamlessly.
How to Edit a PDF in 3 Easy Steps
Upload PDF
Drag and drop your PDF or click to browse. The document renders instantly in your browser without waiting for uploads.
Annotate & Draw
Use the visual toolbar to type text, sketch freehand notes, highlight key sentences, or apply whiteout boxes on any page.
Export & Download
Click 'Save & Export' to compile your edits into a standard, high-resolution PDF and download immediately.
Frequently Asked Questions
Everything you need to know about editing and annotating PDFs with PDFPulse.
How do I edit a PDF online for free?▾
Simply upload your PDF file directly in your browser. Use the intuitive toolbar to add custom text, draw freehand notes or signatures, highlight important passages, or place whiteout redaction boxes. When you're finished, click 'Save & Export' to download your edited PDF instantly.
Can I add text and change colors and font sizes?▾
Yes. Select the Text tool, click anywhere on the page, and type your content. You can customize font sizes (from 12pt to 48pt) and choose from standard colors including Black, Blue, Red, Green, and Yellow.
Can I draw or sign on my PDF document?▾
Yes. The Pen tool lets you draw smooth freehand lines, annotations, arrows, or personal signatures directly on the PDF canvas with adjustable stroke widths and colors.
What does the Whiteout tool do?▾
The Whiteout tool draws clean white rectangular boxes over sensitive details, outdated figures, or unwanted text, masking them from view before you export the document.
Are my confidential files uploaded to any server?▾
No. PDFPulse operates 100% locally in your browser using WebAssembly and client-side canvas rendering. Your sensitive contracts, invoices, and documents are never transmitted over the internet.
100% In-Browser Privacy
Your documents stay inside your device. Edits are merged locally in memory without cloud uploads.
Standard PDF Formats
Edits are embedded as native PDF graphics and text layers compatible with Adobe Reader, Apple Preview, and browsers.
Fast & Zero Setup
No account required, no file size paywalls, and no software installations. Edit right away.