Compress PDF to 300 KB
Bring a PDF under 300 KB with the best quality that fits, without uploading it.
Runs entirely in your browser. Your files are never uploaded.
or drop it anywhere in this box
It never leaves your computer.
You get the best picture quality that fits. 1 KB is counted as 1,000 bytes, so the file passes limits that count either way.
Text and vector graphics are never changed. Only pictures are made smaller.
Compress PDF to 300 KB at a glance
- Target size
- Under 300 KB (300,000 bytes)
- Files uploaded
- None, it runs in your browser
- Quality
- The best that fits the limit
- Text
- Stays sharp and searchable
- Price
- Free
How to use Compress PDF to 300 KB
- Choose your PDFPress Choose a PDF file or drop the PDF into the box. It opens in your browser and is not uploaded.
- Compress to 300 KBExact size is already set to 300 KB. Press Compress PDF.
- DownloadCheck the new size, then press Download compressed PDF.
300 KB is a common upload limit for application forms, scholarship and job portals, and supporting documents. Drop your PDF here and the tool finds the sharpest version that still fits under 300 KB, trying stronger picture settings only as far as it has to. Text and page layout are never changed, and the PDF never leaves your device.
How it works
Compress PDF to 300 KB is a web page that does its work on your own device. The file you choose is opened by your browser, changed there and saved from there; it is never sent to a server, so there is no copy of it anywhere to delete, no queue and no waiting for an upload. Most online tools of this kind send your file to their servers and work on it there, and many keep it for a while. This one does not. There is no account, no watermark and no limit on how often you use it, and the result downloads the moment it is ready.
What fits in 300 KB
Typed documents of many pages usually fit without any visible change. Short scanned documents, such as a mark sheet, a certificate and an ID card together, usually fit with pictures that are still easy to read. Very long scans may need to be split.
Getting scans to fit
If you scan documents yourself, 150 dpi is plenty for reading on screen, and greyscale or black-and-white scans are far smaller than colour. A cleaner starting file keeps more detail after compressing.
Questions
How do I compress a PDF to 300 KB?
Drop your PDF into the box. Exact size is already set to 300 KB, so press Compress PDF and download the result. The new size is shown before you save it.
What if my PDF is already under 300 KB?
The tool tells you it is already under the limit and changes nothing, so you can upload it as it is.
Is 300 KB counted as 300,000 or 307,200 bytes?
The tool aims for under 300,000 bytes, the smaller of the two, so the file passes either way.
Will the PDF still be readable?
Text stays exactly as it was. Pictures are resized only as much as needed to fit, and the result says if they had to be made noticeably softer.
Is my file uploaded?
No. Everything happens in your own browser, so the PDF is never sent to a server.
Other sizes
Compress PDF · Compress PDF to 100 KB · Compress PDF to 200 KB · Compress PDF to 500 KB · Compress PDF to 1 MB · PDF Resizer
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