Compress Image to 100KB

How to compress image to 100KB

1. Choose the image above.
2. Leave Max size at 100 KB, or tap another limit. Add a minimum if your form gives a range, such as 50 KB for a declaration.
3. Tap a preset under Dimensions & DPI if your form gives a size.
4. Check the preview. Zoom in on any text to make sure it is readable.
5. Download the JPG.

Compressing vs. resizing

Compressing keeps the picture the same size on screen and stores it more efficiently by lowering JPEG quality. Resizing makes the picture smaller in pixels. At 100 KB most images only need compression, so this page keeps the original dimensions whenever it can and scales down only very large photos. That matters for documents and handwriting, where small strokes need pixels to stay readable.

Forms that ask to compress image to 100KB

For signatures, the signature resizer is usually better because it also turns the paper pure white.

Handwritten declaration for IBPS and SBI

Bank exam forms ask for a short declaration written in your own handwriting: you state your name, confirm that the information in the form is true, and promise to show your documents when asked. SBI's version also asks for your date of birth and confirms that the signature, photo and thumb impression are yours. Copy the wording exactly as printed in your notification.

• Write in English, in running handwriting, not in capital letters, with a black pen on plain white paper.
• Leave margins and keep the lines straight; the text is shrunk to 800×400 pixels.
• Photograph it flat in daylight, so the whole page is evenly lit.
• Choose it above and tap Declaration 800×400 px (200 DPI), then set Min 50 and Max 100. Raise Contrast a little if the ink looks faint.

A declaration is mostly white paper, so at 800×400 it often comes out below 50 KB. In that case the tool adds padding inside the file to reach the minimum, and the image itself is unchanged.

India Post GDS and CTET photos at 100KB

India Post GDS asks for a photo of 30–100 KB, recommended 320×400 pixels in a 4:5 shape, between 72 and 150 DPI, on a plain white or light background, with the face filling 70–80% of the image. It does not accept scanned photos or selfies. Tap India Post photo 320×400 px, type 150 in DPI, and set Min 30.

CTET asks for 10–100 KB at 3.5×4.5 cm. Tap CTET photo 3.5×4.5 cm, which converts to 413×531 pixels at 300 DPI. The photo is matched with you at the exam centre, so use a recent one.

Compress image to 100KB without losing text

Handwriting and printed text suffer from compression sooner than faces do, because thin strokes turn grey and fuzzy at low quality. To keep text sharp at 100 KB:

• Keep the pixels. Do not set small dimensions unless the form asks for them. On this page, the original size is kept whenever it fits.
• Make the paper white. Grey paper costs bytes. Raise Brightness and Contrast slightly until the paper looks white and the ink dark.
• Shoot straight on. A photo taken at an angle makes the far lines tiny. Hold the phone parallel to the page.
• Crop away the table. Use Crop & rotate so only the page is left; the background around it wastes space.

After compressing, zoom into the preview. If small words are hard to read, the form probably allows a larger file, or the page should be split into two uploads.

100KB, 200KB or 500KB?

Photo and signature fields on Indian forms usually stop at 100 KB or below. Documents are different: NTA and UPSC accept certificates as PDF files of 50–300 KB, and IBPS accepts the 10th certificate as a PDF of up to 500 KB. If a field asks for an image larger than 100 KB, tap 200 KB or 500 KB above; the tool then keeps even more detail.

What fits in 100KB

• Passport or ID photos: fit easily at full quality.
• Handwritten pages: fit at 800×400 or larger with clear strokes.
• Certificates and mark sheets: a flat, well-lit phone photo of one page usually fits with readable text, if the portal accepts JPG.
• Screenshots: fit easily once saved as JPG.
• Large group or scenery photos: fit after some scaling down.

Many portals ask for certificates as PDF files, usually 50–300 KB. This tool creates JPG images, so use it for the photo, signature, thumb and declaration fields, and a PDF tool for certificates.

Other limits

Some forms use 200 KB or 500 KB for documents; tap those sizes above. For photos and signatures with small limits, use the 50 KB resizer, the 20 KB resizer or the signature resizer.