What the Compress PDF tool does
This tool shrinks a PDF’s file size right inside your browser. It opens your document, redraws every page, and re-saves it at the image quality you pick. That makes it great for fat, image-heavy or scanned PDFs that are too big to email or upload. Students, freelancers, and anyone fighting a “file too large” limit can get a lighter copy in seconds.
One honest note: the compressor rasterizes each page, so the result is built from page images. You get a smaller file, but selectable text in the original becomes part of the picture. For photo-loaded reports and scans that trade is usually worth it.
How to use it
- Drag your PDF onto the drop box, or click to browse and pick one file.
- Set the Quality field. It runs from 20% to 95% and starts at 60%. Lower numbers mean a smaller file with softer pages; higher numbers keep pages crisper but save less.
- Click Compress PDF and wait a moment while each page is processed.
- Download your compressed PDF.
Not happy with the size or sharpness? Just nudge the Quality value up or down and run it again. There is no upload step, so re-running is quick.
Why compress here
Your PDF never leaves your computer. The whole job happens locally in the browser, which means it is private, there is no file-size queue, and you start the moment the page loads. It is free, needs no account, and works the same on a laptop or a phone.
For one or two files this page is all you need. If you regularly process many PDFs at once, the BulkPro desktop app from the same team (Bilgetek) is built for batch jobs.
Tip
If the file still looks too big, drop Quality to around 40% and compare. For documents you need to keep sharp for printing, stay near 80% to 90%.
Frequently asked questions
- How much smaller will my PDF get?
- It depends on the file and the Quality you choose. Scanned or image-heavy PDFs shrink the most. A lower Quality value (closer to 20%) gives a smaller file, while higher values (up to 95%) keep pages sharper but save less.
- Will compressing keep my text selectable?
- No. This tool redraws each page as an image to cut the size, so text in the result is part of the page picture and is not selectable or searchable. It is best for scans, photo-heavy documents, and any PDF you mainly need smaller to share.
- Is my PDF uploaded anywhere?
- No. The compression runs entirely in your browser on your own device. Your file is never sent to a server, which keeps it private and lets the tool start instantly.
- What Quality setting should I use?
- Start with the default 60%. If the file is still too large, lower it toward 40%. If pages look too soft or you plan to print, raise it to 80% or 90% for a sharper result.
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Last updated: June 15, 2026