Reduce Image Size in KB
Shrink photos and signatures to a size you choose, like 50 KB.
Runs in your browser — files never leave your device
or drop files here
How to resize a photo in KB
Online forms often limit photos and signatures to 20–100 KB. Pick the limit and this tool finds the sharpest JPG that fits — it only shrinks the image's dimensions when it has to. Everything happens on your device.
Add one or more images (JPG, PNG, WebP, GIF or BMP).
Choose a size limit, such as 50 KB, or type your own.
Click Compress images and download the JPGs.
Compress JPG FAQ
Only if it has to be. The tool first lowers the JPG quality at full size, and reduces the dimensions only when that isn't enough. The result tells you the final size in pixels.
Yes. PNG, WebP, GIF and BMP images are converted to JPG; transparent areas become white, which is what forms expect for signatures.
Results stay under the limit whether the form counts 1 KB as 1,000 or 1,024 bytes.
No. The tool runs entirely in your browser, so your files are processed on your own device and never leave it.
Yes. Every PDFCraftly tool is free, with no sign-up, no watermark and no email required.
Guides
- SSC Photo and Signature Size: Live Photo Rules and the 10 to 20 KB SignatureSSC photo and signature size for CGL, CHSL, MTS and GD forms: the photo is captured live; the signature is a 10 to 20 KB JPEG of about 6 × 2 cm.
- UPSC Photo, Signature and Photo ID Upload Size for the Online ApplicationUPSC online form upload sizes: photo 20 to 200 KB JPG with 3/4 face coverage, triple signature 20 to 100 KB at 350 to 500 px, photo ID 20 to 300 KB PDF.
- DGIP Online Passport: Photo Under 20 KB and Document Upload SizesDGIP's online passport portal wants a photo of 20 KB or less and JPG or PNG scans under 1 MB. How to compress your photo, CNIC and passport scans so they upload.
- Teletalk Job Application Photo (300×300) and Signature (300×80) Size RulesTeletalk job portals (BPSC, Police, ministries) need a 300×300 px JPG photo under 100 KB and a 300×80 px signature under 60 KB. How to pass both checks.
- Dhaka University Admission Photo: 460–480 × 600–620 px, 30–200 KBThe DU admission portal accepts a JPG photo 460–480 px wide, 600–620 px tall and 30–200 KB. How to crop, compress or enlarge it so it uploads first time.
- Nigerian Passport Photo Upload: 600 × 800 px, Under 2 MB, White BackgroundThe NIS passport portal wants a 600 × 800 px photo under 2 MB on a white background. How to take, crop and shrink a phone photo so the upload passes.
More optimize tools
- Compress PDFNewShrink PDF file size while keeping the best quality possible.
- Increase PDF SizeNewMake a PDF bigger in KB to meet a portal's minimum file size.
- Increase JPG SizeNewMake a photo or signature bigger in KB to meet a form's minimum size.
- Repair PDFNewTry to rebuild a damaged or corrupted PDF and save a clean copy.
- OCR PDFTurn scanned PDFs into searchable, selectable text.
- Remove AnnotationsStrip comments, highlights and markups from a PDF.