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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.

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.