SSC document upload specifications
| Document | Format & Size |
|---|---|
| Scanned Certificate PDF Size | 10 KB to 500 KB |
| Candidate Photograph (JPG) | 20 KB to 50 KB |
| Candidate Signature (JPG) | 10 KB to 20 KB |
Last verified: 2026-08-03
SSC Document Upload Rules.
While Staff Selection Commission (SSC) portals primarily demand JPEGs for photographs and signatures, certain post categories and selection posts require uploading supporting qualifications or experience proofs in PDF format.
The standard limit for these scanned PDF files is 500 KB. Running local browser-based compression ensures your high-resolution scanner files are reduced to this exact target size while keeping the text fully readable.
Your files stay on your device.
Your document never leaves your browser. Compression runs 100% client-side using browser APIs — no server uploads, no data collection, no account required.
Frequently Asked Questions.
For SSC posts requiring certificate uploads, the maximum file size for PDFs is typically 500 KB.
While SSC CGL and CHSL mainly request photographs and signatures in JPG, Phase/Selection Post notifications and Phase IX/X/XI/XII document verification stages require uploading experience proofs, degree marksheets, and caste certificates in PDF format up to 500 KB.
Yes. Zcompressor handles multi-page PDF documents smoothly. A 4-page scanned marksheet PDF will be compressed to ~400 KB while retaining full legibility across every page.
We recommend scanning your original certificates at 200 DPI in color or grayscale. A 200 DPI scan offers an optimal balance between visual clarity and initial file size, making local compression to 500 KB fast and seamless.
Yes. Processing is 100% browser-based. Your documents stay inside your device, avoiding third-party server risks.