PDF Toolkit
11 PDF tools that work entirely in your browser. Pick one to start — no sign-up, no uploads, and your original file is never changed.
PDF Tools
11
Merge, edit, protect and more
File Limit
200 MB
Up to 2,000 pages
Processing Mode
In your browser
No server processing
Privacy Status
No uploads
Files stay on your device
Drop your files here
or click to browse
Up to 50 PDFs, 200 MB each, 500 MB total. Files stay on your device.
Popular Tools
Quick access to frequently used tools.
Combine and rearrange
Edit and annotate
Optimize and convert
Security
How these PDF tools work
When you choose a PDF, your browser reads it into memory and a background worker processes it with open-source libraries: pdf-lib for editing and encryption, and Mozilla’s pdf.js for rendering pages. The result is generated on your device and offered as a download. Closing the tab or selecting Start over discards everything.
Each tool lists its limits. In general, files can be up to 200 MB and 2,000 pages, but very large documents depend on your device’s memory. Password-protected files can be opened when you know the password, and tools respect restrictions set by a document’s author.
Frequently asked questions
Do I need to install anything?
No. Everything runs in a modern browser such as Chrome, Edge, Firefox or Safari, on desktop or mobile.
Is there a watermark on my files?
No. We never add watermarks or branding to your documents. The only watermark is one you add yourself with Watermark PDF.
Can I use these tools offline?
Once a tool page has fully loaded, processing does not need the network. The site is not yet packaged as an installable offline app.