Compress PDF
Reduce PDF file size
Your files are processed locally in your browser and never uploaded to our servers.
How to use Compress PDF
- 1
Add your file
Drag & drop, tap to browse, or paste from your clipboard.
- 2
Choose your options
Adjust the settings for exactly what you need.
- 3
Download the result
Ready instantly — no watermark, no waiting in a queue.
Supported formats
Frequently asked questions
Is Compress PDF free?
Yes — completely free, with no signup and no watermarks. PL Tools is supported by a small number of non-intrusive ads.
Are my files uploaded anywhere?
No. Compress PDF runs entirely in your browser, so your files never leave your device and are never sent to our servers.
Is there a file size limit?
Nothing is uploaded, so there's no upload limit — but very large files depend on your device's memory. Files up to about 100 MB work well on most computers; phones may struggle with much larger ones.
Will compressing reduce quality?
Pages are re-saved as images at the quality you choose. 60–70% keeps documents readable while cutting size a lot; raise it if you need sharper output.
Why can't I select text after compressing?
This compressor rasterizes each page into an image — that's what makes it shrink scanned and image-heavy PDFs so well. Keep your original if you need selectable text.
Which formats are supported?
Input: PDF. Output: PDF.
Does it work on my phone?
Yes. PL Tools works in any modern browser on iPhone, Android, tablets and desktop — there's nothing to install.