Compress PDF on iPhone
Reduce PDF file size directly on your iPhone using Safari. No app download needed — compression runs in your browser instantly.
What problem does this solve?
Need to compress a PDF on your iPhone but don't want to install an app? This web tool works directly in Safari or Chrome on iOS, compressing your PDF without uploading it anywhere.
Who needs this?
- iPhone users who need to quickly compress a PDF for email or upload
- iPad users working with large document files
- Anyone on iOS who doesn't want to install a separate PDF app
How to use this tool
- Open in Safari
Visit this page in Safari or Chrome on your iPhone.
- Tap to upload
Tap the upload area and select a PDF from Files or another app.
- Compress
Choose a preset and tap compress. It runs right on your device.
- Save the result
Download the compressed PDF to your Files app.
Upload one PDF file
Drag and drop files here, or browse from your device.
Compression options
Use the full tool
This guide uses our Compress PDF tool. Visit the main tool page for all features and options.
Related guides
- Compress PDF for Email AttachmentReduce PDF size to fit email attachment limits. Works with Gmail (25MB), Outlook...
- Compress PDF to 5MBReduce PDF file size to under 5MB for uploads and sharing. Browser-based compres...
- Merge PDF on iPhoneCombine multiple PDF files on your iPhone using Safari. No app required — merge ...
FAQ
Do I need to download an app?
No. This tool works entirely in your mobile browser. No app installation required.
Does it work offline?
The page needs to load initially, but once loaded, compression runs locally without needing a connection.
Can I compress a PDF from my email on iPhone?
Yes. Save the PDF attachment to your Files app first, then select it from the upload area.