PDF to JPG: Choosing the Right Resolution
Exporting a page as an image is easy. Exporting it at a resolution that is actually usable is where people go wrong.
Turning PDF pages into images is how you get a document into a slide deck, a social post, a CMS or an OCR pipeline. The only real decision is resolution, and it depends entirely on the destination.
A resolution table
| Use | Target | Why |
|---|---|---|
| Web thumbnail | 72–96 DPI | Small file, screen only |
| Slide or document embed | 150 DPI | Sharp at projector size |
| Office printing | 300 DPI | Matches print output |
| OCR input | 300 DPI grayscale | Best accuracy per byte |
| Archival capture | 400–600 DPI | Preserves fine detail |
Doubling DPI quadruples the pixel count, so a 600 DPI page is sixteen times heavier than a 150 DPI one. Above 300 DPI you are almost always paying for storage, not clarity.
JPG or PNG?
JPG for anything photographic or scanned. PNG for pages of pure text, line art, tables and charts, where JPG's compression creates visible fringing around letters. Charts exported as JPG at low quality are the classic "why does this look dirty" case.
Using the tool
PDF to JPG renders each page in the browser and lets you download pages individually. Because it renders locally, a confidential document never leaves the machine — relevant when the reason you are exporting images is to paste a page into a chat.
Reversing the operation
Photos or exported pages can go back into a document with JPG to PDF. Do not do the round trip repeatedly: each generation re-encodes and degrades quality permanently.
Common mistakes
Exporting at screen resolution and then printing; exporting a 600 DPI archive scan for a WhatsApp message; and forgetting that an image of a page is not searchable, so an image-only "document" is invisible to Ctrl+F and to search engines.
FAQ
Can I export all pages at once? Yes, each page is rendered and offered as a separate image.
Do the images keep the text? No. Images have no text layer — that is the point of the format change.
Is transparency preserved? JPG has no transparency; white is used as the background.
Keep reading
- How To Compress PDF Files OnlineA practical guide to shrinking PDFs for email and upload limits - what actually makes a PDF large, and how to reduce it without ruining quality.
- How to Merge PDF Files Without Uploading Them AnywhereMost merge sites upload your documents to a server. Here is how browser-side merging works, why it is safer, and how to get the page order right the first time.
- Split a PDF the Right Way: Ranges, Single Pages and BatchesSplitting is not one operation but three. Picking the wrong one is why people end up with 200 loose files they have to merge again.