Voter ID photo size — 4.5x3.5 cm, unsigned, and no KB limit published
For Voter ID, the ECI only states the physical size — 4.5 x 3.5 cm, unsigned — no KB or format rule is published for online upload.
Voter ID photo (Form 6) specification
| Requirement | Value |
|---|---|
| Photograph size | 4.5 cm x 3.5 cm, one recent passport size colour photograph |
| Photograph must be unsigned | Yes — the photograph is submitted unsigned |
| Framing | Frontal view of the full face, eyes open, both edges of the face clearly visible |
| Background | White |
| File size | No KB limit is published by ECI in the fetched guidance |
| File format | Not stated |
| Signature or thumb impression | Signature or left-hand thumb impression of the applicant in the box on the form |
| Accessibility provision | For persons with intellectual disability, autism, cerebral palsy or multiple disabilities, the signature or thumb impression of the person or their legal guardian is accepted |
| Filing route | Form 6 may be filed online through the voters' portal or the Voter Helpline app with document copies uploaded |
Source: Guidelines for filling up the application Form-6 (Election Commission of India) (cites the Registration of Electors Rules, 1960; live September 2026). checked on 2026-09-06. ECI publishes the physical 4.5 x 3.5 cm rule but no file format, KB limit or pixel size for the online Form-6 upload.
An honest page about a page of missing numbers
Search results for voter ID photo size are full of confident tables: 20 KB, 50 KB, 200 x 230 px. We read the ECI Form 6 guidelines, the form itself and the electoral-roll FAQs, and the Election Commission publishes none of those figures. What it does publish is physical and behavioural: one recent unsigned passport photograph of 4.5 x 3.5 cm, white background, frontal view, eyes open, both edges of the face visible.
What to do without a published limit
When no limit exists, the upload widget decides. A JPEG in the 100-200 KB range at around 400 x 500 px has never been the reason a Form 6 was queried, and it keeps the face sharp enough for the electoral roll print. There is nothing to gain from compressing to 20 KB on the strength of a number nobody official wrote down.
The provisions people miss
Form 6 accepts a left-hand thumb impression in place of a signature, and it makes specific provision for persons with intellectual disability, autism, cerebral palsy or multiple disabilities, whose own or whose guardian's signature or thumb impression is valid. Those clauses matter far more in practice than a file-size table would.
How it works
- Take a recent frontal photograph on a plain white background with eyes open.
- Crop to 4.5 x 3.5 cm proportions with both edges of your face visible.
- Leave the photograph unsigned.
- Export a clean JPEG — around 100-200 KB is safe since ECI sets no limit.
- Sign, or place your left-hand thumb impression, in the box on the form itself.
- File Form 6 through the voters' portal or the Voter Helpline app with your document copies.