Help centre
Plain answers. Can’t find it? Try the guides.
Search help
Privacy & files
- Are my files uploaded?Tools marked “on device” run in your browser.
- How can I check a tool runs on my device?Open the tool, then turn on airplane mode or disconnect from the…
- What is stored in my browser?Tool code is cached so the site works offline.
- Which tools need a server?Word, PowerPoint and Excel to PDF, HTML to PDF and HTML to image need…
- What does “machine draft” mean?Summaries and translations are made by software.
Using the tools
- How do I find the right tool?On the home page, tap the blue word in “I want to…” and type what you…
- Can I use several tools in a row?Yes.
- Can I process many files at once?Many tools accept several files and give you a zip.
- How do I change the page order?Open Organise PDF.
- Is Sign PDF a legal signature?Sign PDF places an image of your signature.
- How do I switch to dark mode?The site follows your device setting.
Offline & install
Problems
- Why didn't my PDF get smaller?Some PDFs are already compressed, or are mostly text.
- My file won't openThe file may be damaged or password-protected.
- I can't select text in my PDFThe PDF is probably a scan or was turned into images.
- A tool stopped halfwayLarge files can run out of memory, especially on phones.
- The download didn't startSome browsers block downloads in private windows or ask first.
- My iPhone photos won't upload to a formMany forms don't accept HEIC.
Frequently asked questions
Are my files uploaded?
Tools marked “on device” run in your browser. Your file is not uploaded. Read more
How do I find the right tool?
On the home page, tap the blue word in “I want to…” and type what you want to do. Or browse all tools by job. Read more
Does it work offline?
Yes, for on-device tools. Open the site once while online so the tools are saved, then they work without a connection. Read more
Why didn't my PDF get smaller?
Some PDFs are already compressed, or are mostly text. Try Smallest, or split the file. Read more