Why PDF keeps layouts fixed
A PDF describes each page as a finished composition. Fonts, images, and spacing are placed at defined coordinates, so the reader does not reflow the content the way it would with a word processing file.
That predictability is the point. A form filled on a phone prints the same way on an office printer, and a signature page keeps its position no matter which viewer opens it.
What PDF can contain
PDFs hold text, raster images, vector artwork, form fields, annotations, and embedded fonts. Pages can be scanned photographs with no selectable text, or fully tagged text that reflows and reads aloud.
The difference matters for search. A scan without a text layer cannot be searched or copied, because the page is a picture of words rather than the words themselves.
Filekind PDF tools and limits
Filekind builds PDFs from JPG, PNG, and static WebP images and renders PDF pages back into JPG or PNG pictures, all inside the browser. Inputs are limited to 50 MB and 100 pages per PDF, with up to 150 MB of rendered output. Those ceilings keep page rendering responsive on ordinary hardware, whether the job runs on a phone or a desktop.
Password-protected PDFs are not supported, and Filekind does not edit PDF content or add OCR text. Alongside converting between images and pages, the PDF tools merge documents, split out selected pages, rotate them, and re-encode embedded images to shrink a file.