Aspirants applying for the UPSC Civil Services Examination (CSE) and other Union Public Service Commission exams face strict requirements for online uploads. The **upsconline.nic.in** portal requires caste certificates (SC/ST/OBC), EWS certificates, and educational degree proofs to be submitted strictly in PDF format and sized between **100KB and 200KB**.

The UPSC Upload Criteria

If your PDF is 99KB, the UPSC portal will reject it. If it is 201KB, it gets rejected as well. This narrow band of 100KB–200KB causes candidates to spend hours compressing and re-compressing files, often resulting in a pixelated document where their name or category certificate number is unreadable.

How to Stay in the 100KB–200KB Window Without Quality Loss

Standard online compression algorithms apply blanket lossy compression, which blurs the text. UPSC verification officers reject applications if the official stamps or signatures on certificates are illegible. PDF Pro uses smart scaling:

Downsample to 150 DPI: This matches the UPSC requirements exactly and keeps pages clear.
Color Flattening: Converts background textures to grayscale, stripping up to 80% of file size while leaving text vectors perfectly crisp.
Metadata Stripping: Removes hidden tags generated by scanners and phones that serve no purpose on the portal.

Secure Your Personal Data

Your caste certificate and degrees contain highly sensitive personal information, including dates of birth, parents' names, and registration numbers. At PDF Pro, all files are encrypted during transit and deleted from our servers permanently within 2 hours. We guarantee 100% data security during your application process.

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