Resize Image to 100 KB

Start with ExactSpec’s 80–100 KB JPG target. Upload and crop your photo, then check the generated file’s actual size before downloading. Use the file-size and image limits specified by the application or website receiving your image.

Adjust the dimensions or file-size target below if your destination has different requirements.

01. Source Photo or Signature

JPG and PNG only · Up to 30 MB

Select a JPG or PNG photo or signature image

Drag and drop a JPG or PNG file here, or choose from your phone’s camera roll. Everything stays on your device.

Fully Private by design · Your images never leave your device. They are not uploaded to any server.

Try a sample:

02. Upload Requirements & Presets

Output format

Quick PresetsMore presets →

Resize Image to 20 KB15–20 KB Resize Image to 50 KB30–50 KB Resize Image to 100 KB80–100 KB Passport Size Photo 35 x 45 mm413×531 px · 30–80 KB

Target File Size Range (KB) [Set the minimum and maximum file sizes here]Required

Min Size (KB)

Max Size (KB)

Exact Pixel Dimensions (Optional)

Width (px)

Height (px)

Physical Size in cm & DPI (Optional)Auto-calculates pixels

Width (cm)

Height (cm)

Resolution (DPI)

DPI

Ready to Crop & Compress

Upload a JPG or PNG first and you will see a live preview of the cropped and optimized image here. You can adjust the crop, zoom, and framing to get the exact look you want.

Preset details

KB target	80–100 KB

These are the preset's starting values. Always follow the dimensions, file-size, format, and other requirements specified by your destination.

How to use this preset

Upload a JPG or PNG and position the crop as needed.
Let ExactSpec create the JPG using the 80–100 KB starting range.
Check the result’s displayed KB value and exact byte count before downloading.
If it misses the range, adjust dimensions or the target only as allowed by the destination, then review the output again.

Practical tips

If the destination specifies dimensions as well as a file-size range, enter the required dimensions before judging whether the output is too large or too small.
If the destination sets only a maximum of 100 KB, confirm whether an output below this preset’s 80 KB starting minimum is acceptable.

Important limitations

The 80–100 KB range is an ExactSpec starting target, not a universal upload requirement. JPEG encoding may not reach it for every image at the chosen dimensions; inspect the measured output size and follow your destination’s rules.

Need help reducing an image to a specific file size? Read our guide on reducing image file size for uploads.

FAQs

How do I use the 100 KB photo preset?

Upload a JPG or PNG, adjust the crop if needed, and review the generated JPG’s displayed size in KB and bytes before downloading.

What if the output is not between 80 and 100 KB?

ExactSpec reports when the encoded image misses the selected range. If it is too large, try smaller dimensions; if it is below the minimum, try larger dimensions. Change the target only if the destination permits it, then check the new output size.

Is 100 KB the right limit for every application?

No. Application and website limits vary. Check the instructions for the destination and use its specified file-size and image requirements.