Image Compressor

Image Size Requirements for Government Job Portals

Every government recruitment portal has its own file size and dimension rules. Get these wrong and the portal throws an error the moment you try to upload — sometimes without explaining clearly what the problem is. Here are the requirements for the most common portals Indian applicants use:

Note: Portals update their requirements occasionally. Always cross-check with the official notification before submitting your application.

How to Compress an Image for APPSC Portal Upload

The APPSC portal (psc.ap.gov.in) is one of the strictest about file sizes. It rejects anything above 50KB for the photo and 30KB for the signature, and it doesn't always give you a helpful error message when it does. Here's the simplest way to get both files within limits:

1. Take or scan your passport-size photo — white or light background, face clearly visible, no dark shadows. A phone camera photo taken near a window works fine.
2. Open this tool and click "Select Images" — choose your photo file. The tool shows you the current file size immediately.
3. Set quality to Medium (around 65%) — this typically brings a 200–400KB photo down to 30–45KB. Check the output size on screen.
4. Download and verify — right-click the downloaded file, go to Properties, and confirm the file size is under 50KB (for photo) or 30KB (for signature).
5. For the signature — sign on white paper, photograph it, crop tightly so it's just the signature with minimal white space around it. Then compress with quality at 70–75%. White-background signatures compress very well because most of the image is a single flat colour.

If your photo is still over 50KB after setting quality to Medium, drop to 55% or 50%. For a passport-style photo, the difference in visual quality at these settings is not significant enough to cause problems during document verification.

Lossless vs Lossy Compression — Which to Use for Government Applications

You'll sometimes see these terms when using image tools and it's worth understanding the difference before you compress something important.

Lossless compression reduces file size without throwing away any image data. The file gets smaller but looks exactly the same. PNG uses lossless compression by default. The problem with lossless-only compression is that it doesn't reduce file sizes dramatically — a 500KB photo might only come down to 420KB, which still won't pass a 50KB limit.

Lossy compression (what JPG uses) works by intelligently discarding image data that the human eye is least sensitive to. At higher quality settings (70% and above), the difference is genuinely invisible in normal viewing. At lower settings, you start seeing blockiness in areas of fine detail.

For government portal uploads:

• Use lossy JPG at 65–80% quality for passport photos — small file size, good enough clarity.
• Use lossless PNG for signatures if the portal accepts PNG — clean edges, tiny file size because it's mostly white.
• If the portal only accepts JPG, save your signature as JPG at 80% quality — it'll still be under 30KB.

How to Reduce Image Size Below 50KB Without Losing Quality

Getting a photo under 50KB is straightforward once you understand what drives file size. There are three main factors: dimensions (pixel width × height), format (JPG vs PNG), and compression quality.

Common Image Upload Errors on Government Portals and How to Fix Them

These are the errors that trip up most applicants. The portal error messages are usually vague, so here's what each one actually means and how to fix it:

Frequently Asked Questions