Learn how to compress a PDF without losing quality you can see. Pick the right level, compare the preview and keep text sharp, free in your browser.

Why is my PDF so large? Usually it is the images inside. See 7 common causes, from phone scans to export settings, and the quick fix for each one.

Compress scanned PDF files without making the text unreadable. Simple steps, the best filter for each document type and fixes for blurry results.

Reduce PDF size for online application forms the right way. Meet job and university upload limits while keeping your CV and certificates readable.

Compress PDF on phone in under a minute, with no app to install. Works in the browser on Android and iPhone, and your file stays on your device.

PDF compression levels explained in plain words: what low, medium and high do to your file, when to use each one, and how to test before you send.

Reduce size of image PDF files made from phone photos. Prepare pictures the smart way, build the PDF, then compress it without losing readability.

Compress a PDF for free in your browser with no sign-up and no watermark. Pick a level with the slider, compare the size and download the result.

Need a PDF under 1 MB for an upload form? Work out your size budget, compress with the slider, trim pages and check the file is still readable.

Need to compress a PDF to 100 KB or 200 KB for an upload form? Use the compression slider, check the result, and split, trim or rescan files that stay too big.