1 MB limit — ID proofs, appointment letters and big scans
1 MB is usually the limit for files like ID proof or appointment letters — this page also explains the difference between 1000 KB and 1 MB.
JPG, PNG, WebP · up to 50 files at once · nothing is uploaded
1 MB files specification
| Requirement | Value |
|---|---|
| GST proof of appointment | Proof of appointment of the authorised signatory, up to 1 MB |
| Rajasthan Sanstha Aadhaar tool | Maximum size of image allowed to compress is up to 1 MB for ID proof |
| What 1 MB means | 1024 KB in binary counting, though many portals treat 1 MB as 1000 KB |
| Practical photo size | A 2000 x 2600 px photo at good quality fits inside 1 MB |
| Practical scan size | Three to five A4 pages at 200 dpi greyscale fit inside 1 MB as one PDF |
Source: Resize Image Tool — Sanstha Aadhaar, Directorate of Economics & Statistics, Government of Rajasthan (live portal page, read September 2026). checked on 2026-09-08.
The comfortable end of the scale
Almost everything else on FileKB is about squeezing files. A 1 MB allowance is the opposite problem: it is large enough that the risk shifts from quality loss to failed uploads. The two official uses we verified are the GST proof of appointment of the authorised signatory, capped at 1 MB, and the Government of Rajasthan's image resize page, which accepts ID proof images up to 1 MB.
MB versus KB, and why we picked the smaller reading
One megabyte is 1024 kilobytes in binary counting, but plenty of portals implement the check as 1000 KB. A file of 1015 KB is therefore legal under one reading and rejected under the other. Aiming at 900 KB removes the ambiguity for the cost of a few invisible pixels.
The practical failure at this size is the network
On a 4G connection in a queue at a cyber cafe, a 990 KB upload fails far more often than a 300 KB one. If your document is legible at 400 KB, upload that instead. FileKB compresses in your browser, so you can try a smaller export and compare before committing — the file never leaves your device during the process.
How it works
- Check whether your portal writes 1 MB or 1000 KB — assume the smaller of the two.
- For a photo, keep the long edge under about 2600 px and export at 85% quality.
- For a multi-page document, scan at 200 dpi greyscale and merge into one PDF.
- Compress to roughly 900 KB or less to leave a safety margin.
- Confirm the file opens and that small print is readable.
- Upload on a stable connection, since large files fail more often mid-transfer.