Open Safari on your iPhone, go to freepdfnest.com/compress-pdf, select your PDF from Files, choose compression level, and download the smaller version. No App Store download needed.
Typical Results on iPhone
A 25MB scanned document compresses to 3-5MB in seconds. Processing happens on your iPhone — the file never uploads to any server.
Ready to try it?
Use our free Compress PDF tool — no signup required.