How to use the Photo & Signature Resizer
Step 1: Read your form's instructions and note the required width, height and maximum file size.
Step 2: Drop your photo or signature image onto the upload box.
Step 3: Choose a preset that matches, or choose Custom size and type the width, height and KB limit.
Step 4: Pick how the picture should fit: Crop to fit works best for faces. Press Resize and compress, then Download.
Features and benefits
Exact pixel size
The output is exactly the width and height you enter, so it passes strict dimension checks.
File size limit
The tool finds the best JPG quality that stays under your KB limit.
Three fit modes
Crop to fit, show the whole image with white bars, or stretch. Cropping keeps faces from looking squashed.
Common presets
Start from a typical photo, passport or signature size, then adjust the numbers.
Private
Your photo is processed on your device and not uploaded.
How the resizing works
First your picture is drawn into a box of exactly the width and height you chose. In Crop to fit mode the picture is scaled until it fills the box and the extra edges are trimmed equally on both sides, which is the best choice for a face. Whole image mode keeps everything and adds white bars, and Stretch fills the box but distorts the picture.
Then the tool searches for the highest JPG quality whose file is no larger than your limit. Because the dimensions are fixed, only the quality changes, so a very small limit on a large picture may not be reachable. The tool tells you if that happens.
Getting a photo that is accepted
Start from a clear, well-lit original with the face centred, because cropping happens around the middle. Use a plain light background if the form asks for one. Signatures work best written in dark ink on plain white paper, photographed flat and cropped close. This tool does not check any rules about backgrounds, clothing or expressions; it only changes size, so read your form's requirements carefully.
Example use cases
Exam applications
Prepare the photo and signature files that an online exam form asks for.
Job portals
Meet the dimension and size rules of a recruitment form.
ID and passport photos
Produce a correctly sized photo from a picture you took.
Account profiles
Make a square or portrait picture of an exact size for a profile.
Frequently asked questions
Which size does my form need?
That is set by the exam or organisation, and it can change. Check the instructions on your form, then enter those numbers using Custom size.
Will my face look stretched?
Not with Crop to fit, which keeps the proportions and trims the edges. Only the Stretch option distorts the picture.
Why does the tool say it cannot reach my KB limit?
At that exact dimension, even the lowest quality is too big. Raise the limit, reduce the width and height, or start with a simpler image.
Does it change the background or edit the photo?
No. It only resizes, crops and compresses. Transparent areas are filled with white.
Is my photo uploaded?
No. Everything runs in your browser.
Related tools
Compress Image to KB
Shrink a JPG, PNG or WebP to a target size such as 50 KB, 100 KB or 200 KB.
Image Tools
Resize Image
Change an image's width and height in pixels, or scale it by a percentage.
Image Tools
Image Compressor
Reduce JPG, PNG and WebP file size in your browser. Nothing is uploaded.
Image Tools
Useful guides
Last updated 10 November 2026.