What Resolution Are PDF to JPG Images?

Each page is rendered at twice (2x) its defined size in the PDF before being exported as a JPEG. Because a PDF page's size is defined in points rather than pixels, the exact pixel dimensions of the resulting image depend on that page's own dimensions — a standard-sized page produces a correspondingly sized image, and a larger page produces a larger image, always at that same 2x multiplier.

The JPEG itself is exported at a fixed quality of 0.9 (out of 1.0), which is high enough that compression artifacts are rarely noticeable. There's no setting to trade quality for a smaller file size, unlike Compress PDF's adjustable quality tiers.

In practice, this combination produces images sharp enough for most uses — viewing, printing, or embedding in a document or webpage — without any configuration required.