Increase Image Size in KB
Some application forms reject a photograph or a signature that is under a minimum kilobyte size. This page re-saves your picture as a JPEG and, if it is still too small, raises the file until it reaches the KB you set. The image stays on your device. Extra bytes do not add detail that was missing from the photo.
Verified on 2026-10-28. SSC CHSL 2026 notice, paragraphs 9.4–9.6 (signature 10 to 20 KB)
Files are processed in your browser and are not uploaded to our servers.
Your files stay on your device. We do not store or access your documents.
Supported formats
JPEG, PNG, WebP
Limitations
- Raises a file to a minimum KB. It does not shrink a file that is already large enough.
- If a high-quality JPEG is still short, extra bytes are a JPEG comment. The picture does not gain detail.
- A portal that recompresses uploads can drop that padding and fall under the minimum again.
- Output is JPEG.
Specification
Verified on 2026-10-28
| Item | What the source says |
|---|---|
| What you set | A minimum file size in KB. The download aims for at least that number × 1,000 bytes. |
| If the file is already larger | It is left unchanged. Use a compress tool when the portal also has a maximum. |
| How a short file is raised | It is re-saved as a high-quality JPEG. If that is still short, a JPEG comment is added until the byte count reaches the minimum. The picture does not become sharper. |
| SSC signature floor | 10 KB on the CHSL 2026 notice, with a 20 KB ceiling. See the SSC signature page. |
| RRB signature floor | 30 KB on CEN 01/2026 and CEN 02/2026, with a 49 KB ceiling. See the RRB signature page. |
How to prepare the file
- Read the minimum and the maximum on your notice. This page only raises a file to the minimum you type.
- Choose 10, 20, 30, 50, or Custom. For the RRB signature floor, choose 30. For the SSC signature floor, choose 10.
- Upload the image. If it is already at or above the minimum, download it unchanged.
- If the page says it added JPEG padding, the picture is the same and only the file size grew. A portal that recompresses uploads can drop that padding.
- If the result is over the portal maximum, compress it with the 20 KB, 50 KB, or 100 KB tool and check both ends of the range.
Questions
When should I raise KB instead of compressing?
When the portal says the file is below its minimum. SSC CHSL 2026 signatures must be at least 10 KB. RRB CEN 01/2026 and CEN 02/2026 signatures must be at least 30 KB. Compressing is for a file that is over the maximum.
Does a larger KB make the photo sharper?
No. If the re-saved JPEG is still under the target, the extra bytes are a JPEG comment. The pixels do not gain detail that was not in the file you uploaded.
What if my file is already bigger than the minimum?
This page does not shrink it. Download the original, or open the 20 KB, 50 KB, or 100 KB tool if the notice also has a ceiling.
Is there one official KB for every Indian form?
No. The table lists two published signature floors and the notices they come from. Type the minimum from the form you are filling. Verified on 2026-10-28.