If file size matters most, JPEG usually shrinks large photo uploads the most.
Image tools
Compress large images and turn them into PDF.
Upload JPG, PNG, or HEIC, then shrink it or export it as PDF.
Input
Upload image
Notes
Best-use guidance
PNG keeps edges cleaner for screenshots and interface images.
If you just need a portable shareable page file, export the image directly as PDF.
Markdown to Word and similar flows stay on the document converter. Excel and PPT are not universal bidirectional formats.