Private by design. Free to use.
Free PDF tools.
Your device.
Your business.
Free online PDF tools to merge, split, compress, convert and sign. Most tasks run right in your browser, keeping your files on your device.
- No sign-up
- No watermarks
- Offline-capable
Advanced PDF Editor features may use temporary backend processing. See where files are processed.
What would you like to do?
40 toolsOne place. Every PDF task.
Find the right PDF tool.
From a quick page edit to a whole stack of documents.
40 tools to make the next task easier
Organize & Manipulate
Merge, split, reorder, rotate, and edit your PDF documents
Convert & Export
Transform PDFs to other formats or import from images and spreadsheets
Security
Protect your documents with passwords and remove existing protection
Optimize & Enhance
Reduce file size, add watermarks, extract text, and manage metadata
Less uploading. More control.
A simpler way to work with private files.
Contracts, invoices, assignments and personal records deserve care. Choose a local tool to work on them without sending the document to a server.
- 01
Choose your tool
Open the task you need. Check its processing label before selecting a file.
- 02
Work on your device
Local tools process your document in your browser. Speed depends on your file and device.
- 03
Save your finished PDF
Preview the result and download a new copy. Keep your original for reference.
Most local tools also work offline once their required assets have loaded. Advanced editor operations that use backend processing need a connection.
A little guidance
Get the result you need.
Delete Pages from PDF
Select the pages you do not need, remove them locally, and export the trimmed PDF once the remaining pages look right.
Read guide 02 Practical guideAdd Watermark to PDF
Choose a watermark that is easy to see but still lets the page content breathe, then preview a couple of pages before exporting.
Read guide 03 Practical guideProtect a PDF With a Password
Set a strong password, save a protected copy, and reopen it once to confirm the file now asks for the password.
Read guide 04 Practical guideRedact Sensitive Information in PDF
Use true redaction blocks, not just visual cover-ups, and verify the sensitive text is gone before you send the PDF anywhere.
Read guideFor the repeat tasksSeveral steps? Make a PDF workflow.Build a recipe like Merge → Rotate → Compress, then follow it through.
Is OnDevicePDF really free?
Yes. The PDF tools are free to use, with no account required and no added watermarks.
Do my PDF files leave my device?
Most tools process your files in your browser without uploading them. Some advanced PDF Editor operations use secure temporary backend processing. Check the processing label on each tool before opening a document.
Can I use these PDF tools offline?
Most local tools work offline after their required assets have loaded. Installing the web app helps keep those assets available. Advanced features that use backend processing need an internet connection.
Can I use OnDevicePDF on a phone or tablet?
Yes. You can open the tools in a modern browser on a phone, tablet or computer. Available features and processing speed depend on your browser and device; individual tools explain any requirements.
Is there a PDF file size limit?
There is no fixed site-wide file size limit. Local processing depends on your device memory and the selected tool. Large or complex PDFs can take longer; check the result before sharing it.
Ready when you are
Keep your PDF tools close.
Use the website on any device, or add our free extension to a compatible desktop browser.
View the Chrome extensionNeed a hand choosing? Contact us or ask Tom, your PDF assistant.