CUET UG Disability Certificate PDF: 50KB to 300KB Fix
For CUET UG the disability or UDID certificate must be a PDF between 50KB and 300KB, per the 2026 NTA Information Bulletin. A file over 300KB is too big, and an over-compressed file under 50KB is also outside the range. Check the size, compress or rescan, and confirm it is still readable.
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For CUET UG, the disability or UDID certificate must be a PDF between 50KB and 300KB. Both limits count: a file over 300KB is too big, and an over-compressed file under 50KB is also outside the range the bulletin gives.
That lower limit is the part most people miss. If you squeezed the scan to fit a 200KB or 100KB habit from another form, check the number again before you blame the portal.
What the CUET UG bulletin asks for each upload
The CUET (UG) 2026 Information Bulletin lists the files below. The certificate has a different range from the photo and the signature, so one compressed file will not fit all three.
| Document | Format | File size (KB) | Other rules |
|---|---|---|---|
| Photograph | JPG/JPEG | 10 to 200 | Colour, 80% face with ears, white background |
| Signature | JPG/JPEG | 10 to 50 | Clearly legible |
| Disability/UDID certificate | 50 to 300 | Scanned copy, clearly legible | |
| Identity proof (non-Aadhaar, non-DigiLocker) | JPG/JPEG | 10 to 200 | Clearly legible |
Source: NTA, CUET (UG) 2026 Information Bulletin. The bulletin gives no pixel size for any of these files. A live photograph is also captured during the application. The 2027 bulletin may change these numbers, so read the new one when it is out.
Why the certificate gets rejected
The bulletin does not print a portal error message for this upload, so do not wait for a specific text. Treat any refusal at the certificate field as a size, format or legibility problem and test those three in order.
- Too big: a phone scan of a full page is often well over 300KB.
- Too small: a heavily compressed or low-resolution scan can fall under 50KB.
- Wrong format: a JPG renamed to .pdf is not a real PDF. The portal wants a PDF file for this field.
- Unreadable: the bulletin says every upload must be clearly legible, and a blurry stamp or number can be rejected even at the right size.
The most common mistake is compressing to the smallest possible file. Aim for the middle of the range, around 100KB to 200KB, so you stay clear of both limits.
Who needs this upload
This applies to PwD/PwBD candidates. NTA says the details of a UDID card are verified on the DEPwD UDID portal. If you have no UDID card, you upload your disability certificate in the proper format, and NTA may verify it with the issuing authority.
If you are not applying under the disability category, you do not have a certificate field to worry about. Your sizes are in our CUET UG photo and signature size guide.
How to fix a certificate PDF that is outside 50KB to 300KB
- Check the current size. Right-click the file, open Properties on a computer, or Info on a phone, and note the KB.
- If it is over 300KB, compress it. Use the PDF to 200KB compressor, which targets under 200KB and so lands inside the range.
- If it is under 50KB, rescan it. Photograph the certificate in daylight, flat, then convert the image to PDF with Image to PDF at a higher quality.
- Check again before upload. Confirm the final file is a PDF between 50KB and 300KB and still readable when you zoom in.
Compress PDF to 200 KB
Same settings as the full tool page.
Files are uploaded over HTTPS, processed and deleted from our server straight after. Open the full Compress PDF to 200 KB page
Photo and signature have different limits from the certificate. Fit them with the CUET UG photo and signature resizer, which makes the photo 10-200KB and the signature 10-50KB. You need a free Google sign-in to download the result.
A worked example
Take a made-up example: your certificate scan is 620KB. It is over the 300KB cap, so compress it. After compression it comes out at 38KB because the scan was a plain black and white page. Now it is under the 50KB floor. Do not compress further. Rescan at a higher quality and aim for something like 120KB, which sits safely inside the range.
The same logic works the other way. A 2MB scan needs a real size cut, and a compressor with a size target gets it down in one pass.
Scanning on a phone so the size lands right
On Android, a document scanner app or Google Drive's scan option gives a flat PDF directly. On an iPhone, the Files app has Scan Documents, and Notes has the same option. Place the certificate on a plain dark table, keep the phone parallel, and let the edges be detected.
Scan only the page the form needs. Extra pages push the file over 300KB faster than quality does.
If the field still refuses the file
Try these in order. Each one removes one cause. Change one thing per attempt, so you know which fix worked. Retrying the same file again and again will not change the result.
- Reopen the PDF and confirm the stamp, the name and the UDID number can be read.
- Rename the file with simple letters and numbers, no brackets or symbols.
- Try another browser, or a laptop instead of a phone, in case the page itself hung. The bulletin only mentions a mobile device for the live photo QR step, so do the document uploads in a normal browser if the phone page misbehaves.
- Check that your internet did not drop mid-upload, then try again.
The bulletin asks for a recent scanned photo (JPG, 10KB to 200KB, in colour, 80% face including ears, white background) as well as the live photograph, so a rejected certificate does not mean your photo failed. Read the bulletin's note on live capture in our exam photo upload errors guide.
Why the portal wants a minimum size at all
A very small file usually means a very small or low-resolution image. NTA says every document must be clearly legible, because the certificate is checked against the UDID record or the issuing authority. A floor on file size is a simple way to keep unreadable scans out. The bulletin does not explain the reason, so this is our reading of it.
Common mistakes before you submit
- Uploading the same compressed file in the photo, signature and certificate fields.
- Saving a photo of the certificate as JPG and uploading it in the PDF field.
- Cropping so tightly that the issuing authority's stamp or the UDID number is cut off.
- Compressing again and again until the text looks soft.
- Using someone else's certificate. The bulletin treats this as unfair means.
If the file keeps failing, the general fixes are in our PDF upload failed on portal guide.
Tools for this
Frequently asked questions
What size should the CUET UG disability certificate PDF be?
Between 50KB and 300KB, as a PDF, according to the CUET (UG) 2026 Information Bulletin. Check the new bulletin for 2027 when NTA publishes it.
Is a CUET certificate under 50KB accepted?
The bulletin range starts at 50KB, so a smaller file is outside it. Rescan at a higher quality instead of compressing further.
Can I upload my disability certificate as a JPG?
The bulletin says the certificate should be a PDF. Convert your scan to a real PDF first; do not just rename the file.
Do I need the certificate if I have a UDID card?
NTA says UDID card details are verified on the DEPwD UDID portal. Those without a UDID card upload a disability certificate. Follow the exact field the form shows you.
What if my signature is over 50KB for CUET UG?
The signature limit is 10KB to 50KB, much lower than the 200KB photo limit. Compress the signature separately from the photo.
Which compressor should I use for a CUET PDF?
Any compressor that lets you check the final size works. A target of under 200KB keeps the file inside 50KB to 300KB unless it ends up tiny, so check the number after.
Why does my CUET UG form upload keep failing even after a few attempts?
The bulletin does not publish portal error messages, so test the file itself: format, size range and legibility. For the certificate that is a PDF of 50KB to 300KB, and for the photo a JPG of 10KB to 200KB. Change one thing per attempt, and if the field still refuses the file, contact NTA through the helpline given in the bulletin.
Sources
- NTA, CUET (UG) 2026 Information Bulletin (checked 2026-10)
Rules and limits change. Always check the latest official notification or portal before you submit a form.