Edit PDF Online
Draw freehand annotations, write text, highlight, and add shapes directly to your PDF document.
Select PDF file to edit
Drop a PDF document here to annotate, draw, and add text
How to use Edit PDF in 3 easy steps
No software installation required. 100% free and runs smoothly on mobile, tablet, or desktop.
1. Select PDF File
Upload the document you want to annotate or write on.
2. Annotate & Draw
Use the pen, text tool, shapes, and color picker to add edits.
3. Save & Download
Export your edited PDF with annotations baked in permanently.
Guaranteed Document Confidentiality
Your files stay on your machine. Client-side tools do not send your files to our servers.
Frequently Asked Questions
Everything you need to know about Edit PDF on HoudiniPDF.
Can I write text anywhere on the page?
Yes! Select the text tool, type your text in the top bar, and click anywhere on the page.
Can I draw with a stylus or finger on tablets?
Yes, full touch support is enabled for mobile, iPad, and touchscreens.
Are original text and images affected?
No, annotations are placed as a high-resolution overlay layer over the original page.
Are my private documents safe?
Yes, all edits are drawn and processed in your local browser.
Can I undo edits?
You can use the Eraser button to wipe annotations before saving.
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