Compress PDF Online
Compress PDF files online with quality presets or a target size.
How to use Compress PDF
Pick a preset and the tool rebuilds each page as an optimized image at that quality — the same approach that makes scanned documents and photo-heavy reports dramatically smaller. Before anything runs, you're shown what will happen and, if your file is text-heavy, warned that gains will be small and selectable text will become an image. You always confirm first.
- Drop your file into the box above, or click it to browse. You can also paste from the clipboard.
- Adjust the options to taste — the defaults are sensible for most cases.
- Press Compress and watch the progress bar; everything runs on your device.
- Download your result — individually, or as a ZIP when there are several files.
Like every tool on ImageCompressorKits, this runs 100% in your browser: your file is never uploaded to any server, which makes it safe to use even with private documents — and it keeps working if you go offline after the page loads.
Frequently asked questions
Why did my text PDF barely shrink?
Digitally-created text PDFs are already tiny per page; rebuilding them as images can't remove much and costs selectable text — the tool warns you about exactly this before running. Scanned and image-heavy PDFs, by contrast, routinely shrink 60–90%.
Will the text still be selectable afterwards?
No — pages are rebuilt as images, so text becomes part of the picture. If you need selectable text, keep the original for editing and use the compressed copy for sending.
Is this tool really free?
Yes — completely free, with no signup, no watermark, and no file limits beyond what your device's memory can handle.
Are my files private?
Yes. Processing happens locally in your browser via JavaScript; nothing is transmitted or stored. See our privacy policy for the full picture.