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JPG to PDF 100 KB

Turning photos into a PDF under 100 KB means one photo, cropped, at a modest quality. 100 KB is 102,400 bytes, and a full frame phone photo is thirty or forty times that before anything runs. This page is honest about how far that has to be cut and what survives.

JPG to PDF

One photo, and only just

102,400 bytes is roughly a small web image. A single page document photographed square on and cropped to the paper fits, with printed text still readable. The same photo uncropped, with a desk and a hand in frame, does not, because half the budget goes on the parts you do not want.

Two photos in one file means 50 KB each. At that point small print goes. If the form wants two pages and caps at 100 KB, it is worth checking whether it accepts two uploads instead of one document. Anything less than that per page is a crop decision, not a converter setting.

The order to do it in

Assemble first with the images to PDF tool, which writes the original pixels into the page. Then set the target with the 100 KB compress target, which re-encodes the page images and checks the result before it hands it back.

The compress step at 100 KB was measured on the public bench at 23 of 56 cases, the hardest of the four targets it ran. A photo assembly is harder still, because there is nothing in the file except images.

What to do before you photograph anything

Fill the frame with the page. Get the light even, so the encoder is not spending bytes on shadow gradients. Hold the camera square, so the page is a rectangle rather than a trapezoid. Crop on the phone. Each of these is worth more than any setting in any tool.

If the result still misses, a 200 KB target doubles the budget and is usually the difference between readable and comfortable. A 50 KB target exists but is a genuinely small ask.

Questions people ask

Can I convert JPG to PDF under 100 KB?
For one cropped photo of a document, yes. For several photos in one file, generally no. The budget is 102,400 bytes in total, and a phone photo starts thirty or forty times larger than that.
Why does cropping the photo help so much?
Because everything in the frame costs bytes. A desk, a hand and a patterned background are detail the encoder has to describe, and they take budget away from the page you actually need to be readable.
Does the images to PDF step compress my photos?
No. It writes the original JPG data into the page as it is. All the size reduction happens in the compress step afterwards, which is why the two steps are separate and why the order matters.
What resolution should I photograph a document at for 100 KB?
Shoot at whatever the phone gives you and let the compress step decide. Lowering the camera resolution throws away information before anything can make an informed choice about what to keep.

Do it now

The tool runs in this browser. Your file never leaves the machine, and the result is checked before you download it.

JPG to PDF

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