Compress PDF to 50 KB
Shrink a PDF to under 50 KB for exam, government and online form uploads — marksheets, certificates and documents — free, and entirely in your browser.
Select a PDF to compress, or drop it here
Shrink marksheets, certificates & documents to fit upload limits.
Processed 100% locally
Compression runs on your device, so your PDF is never uploaded.
Compress documents for forms & applications
Many application portals cap the size of supporting documents. This tool gets scanned marksheets, certificates, Aadhaar, income certificates and other PDFs under 50 KB so the upload isn't rejected for being too large.
Need a different size?
More PDF tools
More free tools
Photos, signatures, conversions — all on-device, no sign-up.
Frequently asked questions
How do I compress a PDF to 50 KB?
Upload your PDF above, keep the target at 50 KB (or change it), and click compress. The pages are optimised to fit under 50 KB, then you download the result. Everything happens in your browser.
Will compressing to 50 KB reduce quality?
To meet a 50 KB target the pages are rendered to images, so the text is no longer selectable and very small targets look softer. We keep the best quality that still fits, so pick the largest size your form allows.
Can I compress a marksheet or certificate PDF to 50 KB?
Yes. Scanned marksheets, certificates, Aadhaar and income certificates are exactly what this is for — they're usually image-heavy, so they compress well to 50 KB.
Is the 50 KB PDF compressor free and private?
Yes. It's completely free with no watermark and no sign-up, and your PDF is processed entirely on your device — nothing is uploaded to any server.