Compress PDF to 250 KB
Get a 250 KB PDF from a scan that is too large for your form. The compressor redraws the pages on your device and keeps the highest quality that fits under 250 KB.
PDF only, up to 25 MB
Processed on your device. Never uploaded.
Settings
Pages are saved as images, so the text can no longer be selected or searched. It still looks the same.
About this tool and size
When 250 KB is the right target
A 250 KB limit is not common in the exam notices we track; you will meet it mainly on admission and scholarship portals. It is still a useful safety target for NTA uploads when the scan has several pages. CUET UG and UGC NET both want the disability (UDID) certificate as a PDF of 50 to 300 KB, and a 250 KB file leaves a margin below the ceiling without throwing away detail you might need.
How many pages fit in 250 KB
Four to seven scanned pages at 72 or 100 DPI, or about two at 150 DPI. A clean, evenly lit page costs much less than a dim one with a grey cast, so the same certificate can fit five pages or eight depending on how it was photographed. Beyond about ten pages, 250 KB is out of reach.
Tip for multi-page scans
Scan every page in the same light and at the same distance; one dark page drags the quality of all the others down, because the whole PDF shares one size budget. For text PDFs with embedded fonts, a size over 250 KB usually comes from a large logo or scanned signature inside. The tool asks before rasterising such a file, since its text would become an image.
How to use it
- Load the document. Pick the PDF that the portal rejected for being too large.
- Use the 250 KB target. It is preselected; other common limits sit beside it.
- Compress. Long files are sampled first, so a 20-page scan does not take a full pass at every resolution.
- Verify. Scroll through the preview and download once the size is ticked.
Questions
Can I compress a 20-page PDF to 250 KB?
Not with readable text. Even at 72 DPI twenty pages need far more. Upload only the pages asked for.
Why does a long PDF take a while?
Every page has to be drawn and re-encoded on your device. A phone handles a few pages per second.
Will the PDF stay under 250 KB on the portal?
Yes. It is kept below 250,000 bytes, so it passes whether the portal divides by 1000 or 1024.
Is my PDF uploaded to a server?
No. The PDF is opened, redrawn and saved inside your browser. It never leaves your device, and the page keeps working offline after your first visit.