Shrink PDF file size on iPhone
Compress PDFs on your iPhone or iPad in Safari. No App Store download, no account, and the result saves straight to Files.
- 100% free, unlimited
- No signup
- No watermark
- Files never leave your device
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Frequently asked questions
Everything about compressing PDFs, sizes and privacy.
How do I shrink a PDF file size on iPhone?
Open this page in Safari, tap Choose PDF files and select the PDF from the Files app. Adjust the target if you want, then tap Download when it finishes. No app is needed.
Where does the compressed PDF go on my iPhone?
Safari saves it to the Files app, in the Downloads folder under iCloud Drive or On My iPhone. From there you can share it to Mail, WhatsApp or any other app.
How do I compress a PDF I received in Mail or WhatsApp?
Open the attachment, tap the Share button and choose Save to Files. Then come back to this page and select it from Files.
Does it work on iPad and Android too?
Yes. It works in Safari on iPad and in Chrome or any modern browser on Android phones and tablets.
Is it really free and unlimited?
Yes. There is no file size limit, no daily limit, no number of files limit, no signup and no watermark. Compression runs on your own device, so there is nothing to pay for and nothing to cap.