Compress an image to an exact KB size
Application forms rarely ask for “a smaller photo”. They ask for under 30 KB, or under 50 KB. Type the number and the tool finds the best quality that fits it.
Select a photo or scan
JPG, PNG, WEBP or HEIC — it never leaves your device
Working…
The photo upload that keeps getting rejected
A phone camera produces images of three to eight megabytes. An application form frequently wants the same photograph in under 50 KB — sometimes under 30. That is a reduction of more than a hundredfold, and it is why the upload step is where so many online applications stall.
The instinct is to keep re-saving at lower quality and re-checking the file size. That is slow and it usually overshoots, leaving you with an uglier photo than the limit actually required. This tool works the other way round: you give it the ceiling, and it searches for the highest quality that stays underneath.
One verified example
Pakistan's Federal Public Service Commission specifies that the photograph uploaded with an online application must be in JPG or JPEG format and under 30 KB, with no pixel dimensions mandated. Set the target to 30 and the tool will get you as close to that ceiling as it can without crossing it.
Check your own form's requirement rather than assuming. Limits vary between commissions, universities and job portals, and they change between recruitment cycles. The number printed on the instructions page of the portal you are applying through is the one that counts — type that number into the field above.
Getting a good result at very small sizes
- Crop before you compress. If half the photograph is background wall, you are spending your entire byte budget on the wall. Crop to head and shoulders first and the same 30 KB buys far more detail on the face.
- Start from a sharp original. Compressing an already-compressed screenshot compounds the damage. Use the original camera file where you can.
- Even lighting beats high resolution. A flat, evenly lit photograph compresses far better than one with harsh shadows, because there is less fine variation for the encoder to preserve.
What the tool outputs
The result is a JPEG, since that is what upload forms overwhelmingly expect and what compresses best for photographs. PNG and HEIC files are accepted as input and converted. If your form specifically demands PNG, this is not the right tool for it.
As with everything on Aura Tools, the image is processed inside your browser and never uploaded. For a photograph of yourself attached to an identity document, that is worth knowing.
Questions people actually ask
What size should my application photo be?
Whatever your specific form states — there is no universal answer, and limits differ between institutions and change between cycles. Read the instructions page of the portal you are applying through and type that number in. As one verified example, Pakistan's FPSC requires the photo to be JPG or JPEG and under 30 KB.
Can I compress a signature image too?
Yes, and signatures compress far better than photographs because they are mostly flat white with thin dark strokes. A signature will usually reach 20 KB while still looking clean.
Why does my photo look grainy at 20 KB?
Because 20 KB is genuinely very little data for a photograph. Cropping tightly to your face before compressing is the single biggest improvement available — it removes background the encoder was otherwise spending your budget on.
Does it change the dimensions of my image?
It reduces them only as far as necessary to hit your target, preferring to lower JPEG quality first. If your form also specifies pixel dimensions, check the result before submitting.
Are HEIC photos from an iPhone supported?
They are accepted where the browser can decode them, and the output is always a standard JPEG that upload forms accept. If an HEIC file fails to load, opening it once on your phone and sharing it as a JPEG will fix it.
Should I crop before or after compressing?
Before, always. Cropping removes background that the encoder would otherwise spend your size budget on, so a tightly cropped head-and-shoulders photo at 20 KB looks dramatically better than a full-frame one at the same size.
Should I use JPG or PNG for a form photograph?
JPG, unless the form explicitly demands PNG. JPG compresses photographic detail far more efficiently, so at a fixed kilobyte target a JPG will always look better than a PNG of the same subject. PNG only wins on flat graphics such as a scanned signature.
What is the smallest a usable passport photo can be?
Around 20 KB for a tightly cropped head-and-shoulders JPG at roughly 300 by 400 pixels. Below that, skin tones start to band and the face reads as blocky. If a form demands less than 20 KB, crop harder rather than compressing harder.