PDF guides
Plain-language answers to the PDF problems that come up most: fitting under a size limit, signing without a printer, working on a phone, and keeping your documents to yourself.
Merge PDFs on iPhone
Combine PDFs on an iPhone or iPad in Safari, with no app to install.
Merge without uploading
Combine PDFs with no upload, and why that matters.
Reduce a PDF under 5 MB
Shrink a PDF to fit an upload or email limit, on your device.
Email a too-large PDF
Get a too-large PDF through an email size limit.
Sign a PDF without printing
Sign a document on screen, with no printer or scanner.
Split a PDF by page ranges
Pull out the pages you need, or cut a document into parts, on your device.
Choose a safe PDF tool
A checklist for picking a PDF tool you can trust, and the red flags to avoid.
The tools
Every tool runs entirely in your browser. Files are never uploaded, and once a page has loaded it keeps working offline.
Looking for a quick answer instead of steps? See the PDF answers.