Compress PDF to 300 KB
Reduce any PDF to 300 KB — a common cap for certificate and proof uploads across Indian portals.
300 KB — the middle ground for certificates and multi-page documents
300 KB sits between the 200 KB and 500 KB limits that Indian portals tend to use. State university admissions, college application portals, and various central government e-service forms frequently cap supporting documents at 300 KB. This tool auto-iterates until your file lands comfortably under that threshold — typically in under 10 seconds.
Documents that commonly need 300 KB compression
- School and college mark sheets — 1–3 page scans for admission and scholarship portals
- Caste and domicile certificates — required for OBC/SC/ST reservations on state portals
- Income certificates and salary slips — financial eligibility proof for government schemes
- Transfer certificates and migration certificates — educational institution portals
300 KB vs 200 KB — which to use?
If the portal explicitly says 300 KB, use this tool — you get better quality than compressing to 200 KB. If you're unsure of the limit, start with 300 KB and resize down only if the upload fails. A 300 KB certificate scan is noticeably clearer than the same document forced into 200 KB, which matters when a portal officer or panel reviews the documents.
How to use this tool
- Upload your certificate or document PDF.
- Click Compress — auto-iterates to ≤300 KB.
- Download and submit to your portal.
Frequently asked questions
Is 300 KB enough for a 3-page mark sheet?
Yes, for a typical printed 3-page mark sheet scanned at 150 DPI. Very dense or image-heavy mark sheets may need to be split or scanned at lower DPI first.
Will the text remain clearly readable?
Yes. 300 KB allows the tool more quality headroom than 200 KB, so text on standard A4 documents stays sharp and legible.
My portal rejects after compression — what's wrong?
Check whether the portal means 300 KB exactly (300,000 bytes) or 300 KiB (307,200 bytes). The tool targets 300,000 bytes for maximum compatibility.
Can I compress a multi-page PDF to 300 KB total?
Yes. All pages are processed together and the output is one compressed PDF. If you have 10+ pages, try 500 KB instead for better per-page quality.
Is my document uploaded anywhere?
No. Compression runs in your browser. Your document never leaves your device.