Compress PDF on iPhone

Compress PDF on iPhone in Safari without installing apps. Works on iOS 15+ with drag-and-drop upload.

Compress PDF on iPhone

Use RatPDF's free PDF compressor — Ghostscript-powered, no signup required.

You can compress pdf on iphone without installing a dedicated app. RatPDF runs in your mobile or desktop browser — upload from Files, Google Drive, or iCloud and download the compressed PDF in place.

Browser support

Safari on iOS 15+, Chrome on Android 10+, and all modern desktop browsers support drag-and-drop upload. If drag-and-drop fails, tap the upload zone and pick the file from your document picker.

Mobile workflow tips

On iPhone/iPad, use Share → Save to Files, then upload from Files in Safari.
On Android, locate the PDF in Downloads or Google Drive first.
Switch to Wi-Fi for files over 10 MB to avoid timeouts.
Keep the tab open until the progress bar completes — background tabs may pause on iOS.

Desktop workflow

Mac and Windows users get the same PDF Compressor with larger screen estate for comparing before/after file sizes side by side in Finder or Explorer.

No app store required

App-based compressors often bundle ads, subscription nags, or excessive permissions. A browser tool avoids install friction and works on managed corporate laptops where the App Store is blocked.

See also: Compress PDF hub for email, WhatsApp, and passport-specific guides.

How it works

Open the PDF Compressor
Navigate to ratpdf.com/pdf/compress in any modern browser.
Upload your PDF
Drag and drop your file or click the upload zone. Password-protected PDFs are supported if you enter the password.
Select compression level
Choose Recommended for balanced quality, Extreme for maximum size reduction, or Less for minimal quality impact.
Download the result
Click download when processing completes. Verify file size locally before submitting to portals or email.