Get your file accepted, first try
Exact pixel size, an exact KB range — including the minimum, which is what actually gets uploads rejected and which almost every other tool ignores. 117 free tools to merge, compress, and convert PDFs, photos, and documents, all running in your browser.
Fix a photo for an upload form →Don't take our word for it — turn off your Wi-Fi. Docexp keeps working. A site that runs with the network off cannot be uploading your files anywhere.
Compress a PDF
Shrink a PDF by recompressing the images inside it — text stays sharp, selectable, and searchable. A maximum-shrink mode re-renders whole pages instead, for when size matters more than selectable text.
The usual reason to compress a PDF is that something won't accept it — an email attachment limit, an upload cap, a portal that silently rejects anything over a few megabytes. The default mode shrinks the file the way professional tools do: it recompresses the images inside the PDF and touches nothing else, so the text stays sharp, selectable, and searchable.
How Compress a PDF works
- Drop your file into the tool, or click to browse.
- Everything runs in your browser — no upload, no server, no waiting.
- Download your result straight to your device.
Good to know: A PDF's bulk is almost always its images, which is why the smart mode works so well on reports and brochures — and why it can't do much for a file that's images edge-to-edge, like a scan. For those, the maximum-shrink mode re-renders whole pages as compressed images: much smaller, but text stops being selectable. If you need to hit an exact number of kilobytes rather than 'smaller', use Compress PDF to exact size instead.
Common questions
Can I still search or select the text afterward?
In the default mode, yes — the text objects are never touched, only the images inside the file are recompressed. Only the maximum-shrink mode turns pages into pictures, and the tool says so before you pick it.
Why did my PDF barely shrink?
Either it's mostly text (text is tiny — there's little to remove), or its images were already efficiently compressed. The tool tells you which images it recompressed and which it left alone rather than silently re-encoding things that can't get smaller.
Why were some images left untouched?
Deliberate caution. Images involved in transparency, CMYK print-colour images, and encodings the browser can't decode with full confidence are skipped, because a compressor that corrupts one PDF in a hundred is worse than none.