What is the maximum PDF size for UPSC document uploads?

Most UPSC certificate and marksheet fields accept PDFs up to 300KB. The photograph field accepts JPEG between 20KB and 50KB, and the signature field accepts JPEG between 10KB and 20KB.

What DPI should I scan documents for UPSC?

UPSC recommends scanning at 200–300 DPI. Higher DPI produces larger files that may exceed the upload limit, while lower DPI can make text illegible for verification.

Can I upload a colour PDF to UPSC?

Yes, UPSC accepts both colour and black-and-white scans. However, compressing a colour PDF without quality loss is harder — use our tool's Recommended compression mode to stay under 300KB.

Does this tool work for UPSC DAF submissions?

Yes, this tool is perfect for compressing the larger Detailed Application Form (DAF) attachments while keeping them perfectly readable.

Compress PDF for UPSC

Compress PDF files to the exact limit required by UPSC secure. Optimize scanned documents and certificates with zero quality loss.

Official Requirements for UPSC

To ensure your document is accepted by the India official platform, it must meet the following strict criteria:

Maximum File Size: 300 KB
Certificate/marksheet PDFs must be under 300KB.
Photograph: 20KB–50KB JPEG.
Signature: 10KB–20KB JPEG.
Documents must be legible — no blurring, pixelation, or cropping.
Scanned documents must be in black & white or colour at 200–300 DPI.

Disclaimer: These requirements are verified based on official guidelines. However, platform rules and guidelines can change. Always consult the official UPSC portal before final submission.

Common Rejection Reasons

File size exceeding the portal limit (most common reason).
Unreadable scan due to over-compression.
Wrong file format (must be JPEG/PDF as specified per field).
Photo or signature outside the permitted pixel/KB range.

Official Guidelines Compliance

Compressing Documents for UPSC Applications

The Union Public Service Commission (UPSC) requires candidates to upload scanned copies of identity proofs, age declarations, and educational certificates in PDF format. These files must strictly adhere to low size ceilings (typically under 300KB). Our PDF compressor is specifically designed to shrink these scanned certificates rapidly while retaining complete text legibility for UPSC verification.

How to Use Compress PDF for UPSC

Follow these simple steps to ensure your file meets all requirements for UPSC.

Upload UPSC Certificates

Select the scanned PDF documents required for your UPSC registration.

Set Target Size

Adjust the compression settings to ensure the output file is under the UPSC KB limit.

Save the File

Download the fully optimized PDF for immediate use on the UPSC portal.

Frequently Asked Questions about UPSC

Answers to common questions regarding requirements for UPSC.

What is the maximum PDF size for UPSC document uploads? Most UPSC certificate and marksheet fields accept PDFs up to 300KB. The photograph field accepts JPEG between 20KB and 50KB, and the signature field accepts JPEG between 10KB and 20KB.: Most UPSC certificate and marksheet fields accept PDFs up to 300KB. The photograph field accepts JPEG between 20KB and 50KB, and the signature field accepts JPEG between 10KB and 20KB.
What DPI should I scan documents for UPSC? UPSC recommends scanning at 200–300 DPI. Higher DPI produces larger files that may exceed the upload limit, while lower DPI can make text illegible for verification.: UPSC recommends scanning at 200–300 DPI. Higher DPI produces larger files that may exceed the upload limit, while lower DPI can make text illegible for verification.
Can I upload a colour PDF to UPSC? Yes, UPSC accepts both colour and black-and-white scans. However, compressing a colour PDF without quality loss is harder — use our tool's Recommended compression mode to stay under 300KB.: Yes, UPSC accepts both colour and black-and-white scans. However, compressing a colour PDF without quality loss is harder — use our tool's Recommended compression mode to stay under 300KB.
Does this tool work for UPSC DAF submissions? Yes, this tool is perfect for compressing the larger Detailed Application Form (DAF) attachments while keeping them perfectly readable.: Yes, this tool is perfect for compressing the larger Detailed Application Form (DAF) attachments while keeping them perfectly readable.