Why portals reject a photo
The usual reasons an upload fails: pixels, kilobytes, format, and the file name.
OpenGuides
Notes on pixels, kilobytes, formats, and names.
JPEG, PNG, and WebP for uploads
Which format survives a size cap, and which one a form will refuse.
OpenPixels and kilobytes, worked as separate limits
A numeric look at a portrait that is both too wide and too heavy.
OpenPer-file limits and total limits
Why five acceptable files can still be rejected as a set.
OpenCrop before you scale
Order of operations when a form demands an aspect ratio.
OpenWorked example: a photo sized for a 200 KB portrait
Inputs, pixel result, and assumptions in HTML, without running the tool.
OpenWhat PDF to Word keeps
The Word file keeps the words. Pictures, tables, and the original layout are not kept.
OpenEach guide states the rule, a number, and where to try it.