Edit any PDF — free, no upload.
Read, annotate, fill, sign, and organize PDFs in one place — right in your browser. Or get the Android app for editing on the go. No watermark either way.
No signup · No watermark · Nothing uploaded to a server
Or use a single tool
Prefer one quick task?
Skip the full editor and jump straight to a single-purpose tool — each runs in your browser, free, with no file uploaded anywhere.
Two ways to edit
Use the browser tools for a quick, one-off edit. Get the Android app when you want to edit PDFs offline, on the go, without opening a browser at all.
No install, no signup
Open a tool and start editing immediately — nothing to download first.
Works offline, on the go
Edit PDFs from your phone's file manager or share sheet, no connection needed.
Questions
Good to know
Is PDF42's PDF editor free?
Yes. All 15 web tools are free with no signup, and the Android app is free to download with unlimited reading. PDF42 Pro adds unlimited saving and exporting and removes ads.
Do I need to upload my PDF to a server to edit it?
No. Both the web tools and the Android app process your PDF entirely on your device. Your file is never uploaded to a server.
Can I edit a PDF on my phone?
Yes. The PDF42 Android app lets you sign, fill forms, annotate, merge, split, compress and convert PDFs directly on your phone.
Does the PDF editor add a watermark to my file?
No. Neither the web tools nor the Android app add a watermark to your edited PDF.
Start editing your PDF now.
Free in your browser, or download the app for offline editing.
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