DU CSAS Photo and Signature Size 2026: KB, Pixels, Format
DU CSAS(UG) does not have a separate photo or signature upload. Your name, category, date of birth, photograph and signature are auto-integrated from your CUET (UG) application and locked as non-editable. What CSAS does ask you to upload are category and certificate documents, with no published KB limit.
FixDoks is an independent website and is not affiliated with any government body, exam board or recruitment agency. Requirements change, so always confirm them in the latest official notification.
DU CSAS(UG) does not ask you to upload a photo or signature at all. Your name, category, date of birth, photograph and signature are pulled automatically from your CUET (UG) application and locked as non-editable fields, so the file you should get right is the one you uploaded to CUET, not a separate CSAS upload.
What CSAS actually auto-fills from CUET
According to the official CSAS(UG) registration guide published by the University of Delhi, a candidate's CUET (UG) Application Number is mandatory for registering on CSAS, and several fields are then auto-integrated from the CUET (UG) portal rather than typed in fresh: candidate's name, category (UR/SC/ST/OBC-NCL/EWS), date of birth, photograph, signature, mobile number and email. These fields cannot be edited inside CSAS. This is the single most misunderstood part of DU admissions, since most pages that rank for "DU CSAS photo size" describe a generic upload step that the current CSAS(UG) process does not actually have.
| Document | Format | File size (KB) | Dimensions | Other rules |
|---|---|---|---|---|
| Photograph | Not applicable | Not applicable | Not applicable | Auto-integrated from CUET (UG), non-editable inside CSAS |
| Signature | Not applicable | Not applicable | Not applicable | Auto-integrated from CUET (UG), non-editable inside CSAS |
| Class X certificate and Class XII marksheet | Scanned copy, format not specified | Not published by the University | Not published | Class X must show date of birth and parents' names; Class XII name must match the CUET (UG) form |
| Category/reservation certificate (SC/ST/OBC-NCL/EWS/Minority/CW/KM/PwBD, where applicable) | Scanned copy, format not specified | Not published by the University | Not published | Name on the certificate must match the school board certificate and CUET (UG) |
Source: University of Delhi, CSAS(UG)-2026 registration guide, Chapter 3 and Annexure III (admission.uod.ac.in, checked September 2026). The Bulletin of Information and registration guide do not publish a KB or pixel limit for the certificate uploads; keep them small and legible rather than aiming for a specific figure the University has not stated.
If your CUET (UG) photo or signature itself needs fixing before you even reach CSAS, get it right first with Resize Photo to 50KB and the signature resizer. Once CUET locks those files in, CSAS carries them forward automatically.
Resize Photo to 50 KB
Same settings as the full tool page.
Runs in your browser. Your file never leaves your device. Open the full Resize Photo to 50 KB page
Step-by-step: what to actually prepare for CSAS(UG)
- Make sure your CUET (UG) application already has the correct photo, signature, name, category and date of birth, since CSAS will not let you change these.
- Register on the CSAS(UG) portal using your CUET (UG) Application Number and date of birth exactly as entered in CUET.
- Verify the OTP sent to the email and mobile number linked to your CUET (UG) registration.
- Fill in your Class X and Class XII marks carefully: the guide says a seat lost to wrongly entered marks used for tie-breaking is not considered under grievance redressal, and nothing can be edited once the profile is submitted and locked.
- Scan and keep ready any category, reservation, sports or ECA certificates you plan to claim, in a clear, legible scanned copy.
- Upload each certificate under Annexure III's document list, then preview the form before final submission and fee payment.
If your CUET photo or signature was already wrong
Because CSAS pulls these fields directly and does not let you re-upload them, a blurry photo, an oversized signature, or a mismatch between your signature and your identity documents on the CUET side becomes a CSAS problem too, just inherited rather than newly created. If you have not yet completed your CUET (UG) application for the year, treat the photo and signature step there with the same care you would give any other exam's spec, since there is no second chance to fix it inside CSAS later.
If you are applying to CUET (UG) and DU CSAS in the same season, sort out your CUET photo and signature first. Everything after that, including CSAS, DU's own portal and any college-level verification, treats those files as already final.
Certificate uploads: no published size limit, but stay careful
Unlike the photo and signature step, certificate uploads for category, reservation, sports, ECA and disability claims are genuinely a CSAS-side upload, listed in Annexure III of the registration guide. The guide does not publish a specific KB or pixel limit for these files, only that they must be the latest, clear, legible and fully readable, and match the details on your CUET (UG) record and school board certificates. Since no ceiling is published, a practical choice (our suggestion, not a University rule) is a single-page scan of around 200KB or less, which uploads easily while keeping every stamp and signature readable. If the portal shows a limit on the upload screen, follow that.
Turn a phone scan of a certificate into a clean, small PDF with Compress PDF to 200KB before you upload it under CSAS's document list.
Common mistakes with DU CSAS uploads
- Trying to find a photo or signature upload step inside CSAS that does not exist in the current process.
- Registering for CSAS with a CUET (UG) Application Number or date of birth that does not exactly match the CUET record, which blocks registration.
- Uploading a category certificate where the candidate's or parent's name does not match the school board certificate and the CUET (UG) record.
- Assuming an income or category certificate issued before the University's stated cut-off date (for example, income certificates must be issued after 31 March of the admission year) will be accepted.
- Leaving certificate uploads to the last day of a registration window, when correction time is limited once the profile section is submitted and locked.
For the photo and signature rules of the CUET (UG) exam itself (photo 10-200KB and signature 10-50KB in the CUET UG 2026 bulletin), see the CUET UG photo and signature size guide, since getting CUET right is what decides what CSAS will show later.
Tools for this
Frequently asked questions
Where do I upload my photo for DU CSAS?
You do not upload one. DU CSAS(UG) auto-integrates your photograph, signature, name, category and date of birth directly from your CUET (UG) application, and these fields are non-editable inside CSAS.
Can I change my photo or signature inside the CSAS portal?
No. The official registration guide states these fields are auto-integrated from CUET (UG) and locked. If either was wrong, it needs to be corrected on the CUET side, if a correction window is still open there.
What documents does DU CSAS actually ask me to upload?
Category, reservation, sports, ECA and disability certificates as applicable, plus your Class X certificate and Class XII marksheet, listed under Annexure III of the CSAS(UG) registration guide.
What is the file size limit for DU CSAS certificate uploads?
The registration guide does not publish a specific KB or pixel limit for these certificate uploads. Keep each scan clear and legible. Around 200KB or less per single-page scan is a practical target (our suggestion, not a University rule); follow any limit the upload screen shows.
Does my CUET Application Number matter for CSAS?
Yes, it is mandatory. You register for CSAS(UG) using your CUET (UG) Application Number and date of birth, and these must exactly match your CUET record.
What if my name differs between my certificate and my CUET record?
The registration guide states that names on category, reservation and other certificates must match the school board qualifying certificate and the CUET (UG) record. A mismatch can hold up or reject your claim, so get it corrected on the source document before applying.
Sources
- University of Delhi, CSAS(UG)-2026 Registration Guide (Chapter 3, Annexure III) (checked 2026-09)
- NTA CUET (UG) 2026 Information Bulletin (checked 2026-09)
Rules and limits change. Always check the latest official notification or portal before you submit a form.