SUPPORT US

SUPPORT CONVERTCRAFT KEEP THE FREE TIER ALIVE

We don’t track you and we don’t know if you’re using an adblocker. Our ads are run by Google — no pop-ups, no annoying ads, just clean placements. Ads help us keep our free tier completely free for everyone.

Why We Need Your Support

  • Google Ads Only: We run Google AdSense — no pop-ups, no video ads, no misleading banners. Just clean, non-intrusive placements.
  • No Tracking: We do not track you, sell your data, or monitor your browsing. Your privacy is absolute.
  • Free Forever: Ads fund our servers so we can keep the free tier available to everyone, everywhere, without compromise.

Whitelist Us 💜

If you use an adblocker, please consider whitelisting ConvertCraft. It takes 10 seconds and directly keeps the project alive.

Every ad view helps us maintain servers, develop new tools, and keep your data private — all at no cost to you.

No Pop-upsNo TrackingGoogle AdsPrivacy FirstFree Forever

❤️ Support ConvertCraft

Buy Me a CoffeeSupport Plan — $4.99/mo

Support via Buy Me a Coffee or get the Support Plan with exclusive benefits.

Guide

How to Compress a PDF Online Without Losing Quality

Step-by-step guide to reducing PDF file size in your browser — no uploads, no software, and no quality loss using ConvertCraft's free PDF compressor.

Large PDF files are a constant headache — they clog email attachments, slow down uploads, and eat into cloud storage quotas. Most online PDF compressors require you to upload your document to a remote server, which raises obvious privacy concerns for sensitive contracts, medical records, or financial statements.

ConvertCraft's PDF compressor works entirely inside your browser. When you drop a file onto the tool, it uses WebAssembly-powered libraries to re-encode images, strip unused metadata, and optimize the internal PDF structure — all without ever sending the file over the network.

To compress a PDF: 1) Open the PDF Compress tool on ConvertCraft. 2) Drag and drop your file or click to browse. 3) Choose a quality preset (high, balanced, or maximum compression). 4) Click Compress and download the result instantly.

In our tests, a typical 12 MB scan-heavy PDF compresses to under 3 MB at balanced quality with no visible difference. For image-heavy documents the savings can be even more dramatic — up to 80% reduction.

Because everything runs locally, there is no file size limit imposed by server uploads. You can compress 100 MB+ files as long as your browser has enough memory.