PDF tools

PDF tools in your browser

Split PDF pages, combine multiple PDF documents, compress file size, redact sensitive content, and add watermarks — all without uploading your files anywhere. Pick a tool to get started.

Guides

Pages built for real questions

These pages explain how the tools work, when to use them, and what to verify before sharing documents.

FAQ

Questions people ask

  • Are my files uploaded to your servers?+

    No. Everything runs in your browser using pdf-lib and PDF.js. Your PDF never leaves your device unless you save the output yourself. You can verify this by watching the Network tab in browser DevTools — no upload requests will appear.

  • Is there a file size limit?+

    There is no hard cap from us. Very large PDFs — particularly scanned documents with high-resolution images — may be slow or run out of browser memory depending on your device. If something fails, try a smaller file first or close other browser tabs to free up memory.

  • Can I split password-protected PDFs?+

    Usually not. Encrypted files need to be unlocked in another tool first. Once the password protection is removed, you can bring the file here for splitting.

  • What browsers work?+

    Recent versions of Chrome, Firefox, Edge, and Safari on desktop work well. Mobile browsers generally work for small files but may struggle with larger or more complex PDFs due to memory constraints.

  • How do page numbers work?+

    Pages are numbered from 1, matching how a printed document is counted. Use commas to separate individual pages and dashes for ranges: 1-3, 5 means pages 1, 2, 3, and 5. A range like 1-3, 5, 8-10 means pages 1, 2, 3, 5, 8, 9, and 10.

  • Do you keep copies of what I process?+

    No. There is no file database or document storage on the server. The site serves static files — HTML, CSS, and JavaScript — and has no file-handling capability. When you close the tab, the loaded file is gone from the app.

  • Do I need to create an account?+

    No. None of the tools require an account, email, or any personal information. Open the tool, use it, download the result.

  • What does "flattening" mean for redaction?+

    Flattening merges all layers of a PDF page into a single rendered image of the page. For redaction, it means the text underneath a redaction box is destroyed rather than merely hidden by a visual overlay. A flattened redaction cannot be undone by removing a layer.

  • Can I use these tools offline?+

    Once the page has loaded, the processing tools themselves can run without an internet connection. However, you need to be online to load the page initially, and some browser features may behave differently in offline mode.

  • What is the difference between extracting pages and splitting into chunks?+

    Extracting pages lets you specify exactly which pages you want to keep in a single output PDF — for example, pages 3-7 and 12. Splitting into chunks divides the whole document into equal-sized parts — for example, every 5 pages — without you specifying exact page numbers.