Compression · 100% on-device

File Compressor for iPhone

Compress PDFs, videos and images on your iPhone — reduce MP4, JPG, PNG and PDF size for email and messaging. You choose the quality. No uploads, no ads, no size limits.

Drag & Drop File Here

or browse to select — PDF, MP4, JPG, PNG…

Files are processed on your device, never uploaded.

Popular compression tasks

Make files smaller for email, messaging and storage without ruining quality.

Compress PDF Compress Video Compress Images Compress MP4 Reduce PDF size Reduce video size Compress JPG Compress PNG Shrink photo

How to compress a PDF on iPhone

  1. 1

    Get the App

    Download ConvertEase free and tap Compress.

  2. 2

    Pick a File

    Select a PDF, video or image and choose a compression level.

  3. 3

    Compress & Save

    Tap compress and save the smaller file or share it in seconds.

File compressor FAQ

Download ConvertEase free, tap Compress, select your PDF, pick a compression level and tap Compress. The smaller PDF is created on-device and saved to Files in seconds.

Select your MP4 or MOV in ConvertEase, choose a target size or quality, and the app re-encodes it on-device to a smaller file you can email or message.

Yes. ConvertEase lets you compress JPG and PNG images with an adjustable quality slider, so you decide the balance between size and clarity.

No. Because compression runs locally on your iPhone, there are no upload caps — you can compress large 4K videos and big PDFs.

Yes. Compression happens 100% on-device and nothing is uploaded, so your files stay private and the app works offline.

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Shrink your files in seconds

Free, private and ad-free. Compress PDF, video and images right on your iPhone.