A form asks for an image under 100 KB, but moving a quality slider does not reliably hit a precise limit. Use a tool that checks the exported byte count. PixMinto’s 100 KB preset makes a JPG copy and may reduce dimensions when a quality change alone is insufficient.
Create an image at most 100,000 bytes
This preset controls the target size for you; the output is JPG. It is not a guarantee that every form will accept the image, because a form can impose additional rules.
Open the 100 KB tool and choose a JPG, PNG or WebP within the input limits.
Process the image. The tool searches JPEG quality settings and, if necessary, reduces the pixel dimensions.
Read the result size and dimensions, download the JPG, then test it on the destination form.
What 100 KB means in this tool
The limit is 100,000 bytes, not 102,400 bytes. An operating system or website may display KB using a different convention or rounded figures. Use the exact byte count when comparing strict limits.
If your form asks for a range, such as 50–100 KB, this preset only enforces the upper limit. It does not pad a small result to meet a minimum. A form can also require a particular width, height or aspect ratio.
Why the result may have fewer pixels
A large detailed image may not fit within 100,000 bytes at its original dimensions with usable JPEG quality. The preset can reduce width and height together, preserving the aspect ratio. Check the displayed result rather than assuming all source pixels were kept.
If the resulting lettering or face is too small, the destination requirements may conflict with your source. Start with a more suitable crop or a photo made for that form. This tool does not crop, retouch or certify an application photo.
JPG output and transparent images
PNG and WebP inputs are converted to JPEG for this preset. Transparent areas become white because JPEG cannot store alpha transparency. Keep the original logo or graphic if you need its transparent version later.
A JPG already at or below 100,000 bytes is kept without re-encoding. That result preserves the original file’s metadata too. Newly encoded results do not copy EXIF or GPS, so check the actual file before sharing.
If the upload still rejects the file
Check the form’s accepted formats, exact byte range, pixel dimensions and filename rules. A valid JPG under 100 KB may still fail a form that requires a different aspect ratio or minimum dimensions.
If processing fails, read the error, try one readable image and check the input limits: five files per batch, 15 MiB per file and 40 megapixels. A failed result is not exported as an oversized file.
Frequently asked questions
Will the result be exactly 100 KB?+
No. The preset aims for at most 100,000 bytes. It may produce a smaller file and does not add padding.
Can the preset preserve the original dimensions?+
It tries quality changes first, but can reduce dimensions when necessary. Compare the result dimensions before downloading.
Does this tool support HEIC directly?+
This preset accepts JPG, PNG and WebP. Convert HEIC to JPG first, then use the 100 KB tool if needed.
Compress to 100 KB
Try the sample first, then process your images. Compare the result and keep the original for future editing.
Compress to 100 KBRelated image guides
This guide is currently available in English. The general HEIC guide is available in 13 languages.