Official TNPSC Certificate Upload Specifications (2026)
During the One Time Registration (OTR) update, online application, or On-Screen Certificate Verification (OSCV), the Tamil Nadu Public Service Commission mandates that all educational, community, and special reservation certificates must strictly adhere to the following file parameters:
| Parameter | Official Requirement | Tool Auto-Correction |
|---|---|---|
| File Size Range | Strictly between 100 KB and 200 KB | Automatically compresses to 140 KB – 160 KB |
| Accepted Formats | PDF or JPG / JPEG | Outputs both Valid PDF and JPG |
| Resolution & DPI | 150 DPI to 200 DPI (Seal & sign must be legible) | Maintains high-definition text & official stamps |
| Security | No password-protected PDFs allowed | Removes any encryption locks |
TNPSC இணையதளத்தில் சான்றிதழ்களை (Community Certificate, 10th Marksheet, PSTM) பதிவேற்றம் செய்யும்போது, கோப்பின் அளவு கண்டிப்பாக 100 KB முதல் 200 KB-க்குள் மட்டுமே இருக்க வேண்டும். 100 KB-க்கு குறைவாகவோ அல்லது 200 KB-க்கு அதிகமாகவோ இருந்தால் போர்ட்டல் ஏற்றுக்கொள்ளாது.
Which Documents Must Be Compressed to 100KB – 200KB?
The following certificates require 100KB–200KB compression during TNPSC document verification:
- Community Certificate: Permanent Community Certificate Card issued by Tahsildar / Revenue Authority (OBC, BC, BCM, MBC/DNC, SC, SC(A), ST).
- SSLC (10th) Marksheet: Required as proof of Date of Birth (DOB) and Tamil language study.
- HSC (+2) / Diploma Certificate: Proof of Higher Secondary qualification.
- Undergraduate / Postgraduate Degree Certificate: Provisional or Convocation certificate.
- PSTM Certificate: Persons Studied in Tamil Medium certificate from 1st standard to prescribed educational qualification in the official TNPSC Annexure format.
- Special Reservation Documents: Destitute Widow (DW) certificate, Ex-Servicemen discharge book, Differently Abled disability certificate, and No Objection Certificate (NOC) for government employees.
How to Compress Scanned Certificates on Mobile (Step-by-Step)
If you scanned your document using your smartphone camera or an app like Adobe Scan or CamScanner, the file size is usually between 1.5 MB and 4 MB. Follow these 3 simple steps to compress it:
- Step 1: Tap the "Browse Certificate" button above and pick your scanned photo or PDF.
- Step 2: Our intelligent compression engine automatically balances image sharpness with file compression, bringing the file right into the 140 KB – 160 KB sweet spot.
- Step 3: Tap "Download Certificate as PDF" (or JPG) and directly upload it to the TNPSC OTR portal without errors.
Need to format your Photo or Signature as well?
Use TNPSC Photo & Signature Compressor ➔