JPG, PNG or WebP: Which Format to Export PDF Pages As

When you export PDF pages as images, you pick a format before you see the result. Choose wrong and you get either a blurry mess where the text should be, or a 4MB file for a page of plain text.

The right answer depends on one thing: what is actually on the page.

The One Rule That Decides It

Photographs compress well with JPG. Sharp edges do not.

JPG was designed for continuous-tone images — photographs, where colour changes gradually across an area. It achieves its size savings by discarding detail the eye is unlikely to miss in that kind of image.

Text, line art, diagrams and screenshots are the opposite: hard boundaries between one colour and the next. JPG handles those badly, producing faint smudges around every letter. At normal zoom it looks slightly soft. Zoom in and you see the damage.

So:

• A page that is mostly a photograph — a scanned photo, a design mockup, a product shot — use JPG.
• A page that is mostly text or diagrams — a contract, an invoice, a chart, a slide — use PNG.

That single question resolves most cases.

The Three Formats

JPG

Smallest files for photographic content. No transparency support — anything transparent becomes white. Lossy, so each save discards a little more detail.

Use for: scanned photographs, image-heavy pages, anywhere file size dominates and the content is not text.

PNG

Lossless: every pixel is exactly what was rendered, and re-saving never degrades it. Text stays crisp at any zoom. Supports transparency.

The cost is size. A text page as PNG can be several times the JPG, though for pages with large flat areas of a single colour — most documents — PNG compresses better than people expect.

Use for: text pages, diagrams, charts, screenshots, anything going into a document or presentation, anything that might be edited later.

WebP

The modern option, supported by every current browser. Roughly PNG-level quality at noticeably smaller sizes, with transparency support.

The caveat is compatibility outside the browser. Some older desktop software and a few print workflows still will not open it.

Use for: anything going on a website, or where you want PNG quality without PNG file sizes and control where the file ends up.

Resolution Matters More Than Format

The format choice gets the attention, but resolution has the bigger effect on both quality and size — and it is the one people forget to set.

Pages are rendered at a scale factor relative to their natural size. Our PDF to JPG tool defaults to 1.5x, which reads clearly on screen and keeps files manageable.

• 1.5x (default) — on-screen viewing, email attachments, web pages. Right for most uses.
• 2x — when someone will zoom in, when the page has small print, or when the image will be printed.

Doubling the scale roughly quadruples the pixel count, so a 2x export is around four times the file size. Do it when you need it, not by default.

If text in your exported image looks soft, raise the resolution before you change format. Blurry text at 1.5x JPG is usually a resolution problem wearing a format problem's clothes.

Common Situations

Slides for a presentation. PNG at 2x. They will be projected large, and text must stay sharp.

Sending a page preview in an email or chat. JPG at 1.5x. Small, fast, and nobody is zooming in.

Putting a document page on a website. WebP at 1.5x — the smallest of the three at comparable quality, and every browser handles it.

Archiving a scanned photograph. PNG, and keep the PDF too. Archives should not be lossy.

A page for someone to read on a phone. JPG at 1.5x if it is photographic, PNG at 1.5x if it is text. Phone screens are sharp enough to show JPG artefacts around letters.

Feeding an image into OCR or another tool. PNG at 2x. Recognition accuracy depends on clean letter shapes, and JPG artefacts are exactly the kind of noise that degrades it.

What You Lose Either Way

Exporting pages as images discards everything that made the file a PDF. There is no selectable text, no searching, no links, no form fields — and screen readers cannot read the result at all.

That is fine when an image is what you wanted. It is a problem if you are using image export as a way to "lock" a document so it cannot be edited. That costs you accessibility and searchability in exchange for protection anyone can undo by running OCR.

If the goal is to stop editing rather than to produce images, flatten the PDF instead. It fixes the content in place while keeping the text real.

Going the Other Way

To turn images back into a PDF, JPG to PDF handles the reverse and lets you choose whether each page is a standard A4 or Letter sheet with the image centred, or cut to the image exactly with no margin.

Worth knowing: a round trip from PDF to image and back does not restore the text. You get a PDF containing pictures of your pages. The text layer is gone from the moment you exported.

Frequently Asked Questions

Which format should I use if I am not sure? PNG. It is lossless, so you cannot make the quality worse by choosing it, and text stays sharp. Switch to JPG only when the file is too large and the page is photographic.

Why does the text in my exported JPG look fuzzy? JPG handles sharp edges poorly, and that is what text is. Either export as PNG, or raise the resolution to 2x — usually the resolution is the bigger factor.

Is WebP safe to use? In a browser, yes — every current browser supports it. Outside one, check the destination first; some older desktop software still will not open WebP.

Can I get the text back from an exported image? Not directly. You would need to run OCR to generate a new text layer by recognising the pixels.

What resolution should I use for printing? At least 2x. Print shows detail that screens hide, and a 1.5x export that looks fine on a monitor can look soft on paper.

Does exporting images change my original PDF? No. New image files are created and the source PDF is untouched.