Microsoft Edge has a surprisingly capable built-in PDF viewer. Drawing, highlighting, comments, signature stamps — all free, all in the browser you already have.
Flint runs in Edge too, and picks up where Edge stops.
Where Edge wins
Free, no install, ubiquitous on Windows. Decent annotation. Read-aloud is genuinely useful. Form filling on simple fillable PDFs.
Where Flint pulls ahead
Editing body text. Convert-pdf-to-word. Merge-pdf, split-pdf, redact-pdf. Repeatable signing with saved signature. Edge cannot do these without a separate tool.
Best for…
Edge for view and annotate. Flint as soon as you need to actually change the document.
Setup tip
Leave Edge as the default PDF handler. Bookmark edit-pdf for when you need real editing. Two tools, zero cost for everyday tasks.
FAQ
Is Edge PDF safe to use?
Yes — it is part of the browser sandbox and well-maintained by Microsoft.
Can Edge edit text?
No. Annotation only.
Does Flint work in Edge?
Yes, fully supported. Same in Chrome, Firefox, Brave and Arc.
Stack Edge and Flint — that covers nearly every Windows PDF need.