PDF Tools
PDF to JPG
Render each page of a PDF to a JPG or PNG image at the resolution you choose: useful for slides, previews and social posts.
Overview
Why use a free PDF to JPG converter?
This free PDF to JPG converter renders each page of a document as an image. Choose JPG or PNG, pick a resolution, export every page or a range, and download the images one at a time or as a single zip.
It is worth knowing what conversion costs before running it. A PDF page is a set of drawing instructions (text is stored as text, lines as lines), which is why it stays sharp at any zoom and why its words can be searched and copied. An image is a fixed grid of pixels. Converting is a one-way step: the text becomes a picture of text, and nothing can get it back.
That trade is exactly right when the destination is a slide, a social post, a website or a preview thumbnail, all of which want a picture. It is the wrong step for anything someone still has to read as a document, and splitting the PDF is almost always the better answer there.
Nothing is uploaded. The pages are rendered by your own browser, so a confidential document never leaves your device, and pages are rendered one at a time, because a full-resolution page is large enough that doing several at once is how a tab runs out of memory.
Step by step
How to convert PDF pages to images
Open your PDF
Choose the file you want to export. Nothing is uploaded: the pages are rendered by your own browser.
Pick a format and resolution
JPG for pages that are mostly photographs, PNG for text and diagrams. 150 DPI suits most uses; choose 300 only if the image will be printed.
Export and download
Convert every page or type a range like 1-3, 7. Save images one at a time, or take the whole set as a zip.
What you get
- JPG or PNG output
- Selectable resolution up to 300 DPI
- Convert every page or a selection
- Download individually or as a zip
- Rendered locally in your browser
Background
What rasterising a page actually does
A PDF describes a page rather than depicting it. It says which glyphs to draw in which font at which position, where the vector shapes go, and where any embedded images sit. A viewer executes those instructions afresh every time you open or zoom the document, which is why a PDF is equally sharp on a phone and on a billboard.
Rasterising executes those instructions once, at a size you choose, and keeps only the result. What comes out is a grid of pixels with no memory of having been text. That is why an exported page cannot be searched, copied from, or read aloud by a screen reader, and why zooming past the resolution you picked shows the pixels rather than more detail.
Resolution is therefore the whole decision, and it is measured in dots per inch. A PDF point is one seventy-second of an inch, so the maths is direct: at 72 DPI a page renders at exactly its point size, at 150 DPI at just over twice that, and at 300 DPI at roughly four times. Because the work is two-dimensional, that last step is not four times the effort but sixteen: an A4 page at 300 DPI is about 8.7 million pixels.
This is also why file sizes climb so quickly, and why the format matters. JPEG throws away detail the eye is poor at noticing, which suits photographs and produces small files. PNG keeps every pixel exactly, which suits text, diagrams and screenshots: JPEG puts visible fuzz around sharp edges, and a page of small type is nothing but sharp edges. The cost of PNG is size, often several times a JPEG of the same page.
One detail catches people out. JPEG has no transparency, so a page rendered onto an untouched canvas encodes as solid black rather than white. Filling the canvas white first is not optional, and a converter that skips it produces exactly the black pages people occasionally report from other tools.
Not to be confused with
- Splitting a PDF
- Produces one PDF per page instead of one image per page, and keeps everything intact: text stays selectable, quality stays perfect, file sizes stay small. If the goal is separating pages rather than picturing them, splitting is the right tool and this one is a downgrade.
- Taking a screenshot
- Captures the page at whatever size it happened to be on screen, usually around 96 DPI and often with viewer interface caught in the edges. Exporting renders the page itself at a resolution you choose, cleanly and consistently across every page.
- Extracting embedded images
- Pulls out the photographs that were placed inside the PDF, at their original resolution and without the text around them. Different job entirely: this renders the whole page as one picture, including the text.
- Converting to Word or text
- Attempts to recover the words as editable content, going in the opposite direction from rasterising. If what you need is the text, exporting images is the worst possible first step. It throws away the very thing you are trying to keep.
- Compressing a PDF
- Reduces file size while leaving it a PDF, so text stays text. Rasterising a document to shrink it is a common instinct and usually makes the file larger, not smaller, as well as destroying the text layer.
- OCR
- Reads text out of an image and puts it back into a searchable layer: the repair for what rasterising destroys. Worth knowing that if you export and later need the words back, OCR is the only route, and it is never perfect.
Reference
The settings that decide the result
There are only a few choices here, and each one trades quality against size and time in a direction that is easy to get wrong in both directions.
Resolution
Dots per inch, and the setting that matters most. 96 for previews and thumbnails, 150 as a sensible default, 300 when the image will be printed. Each step up multiplies both the pixels and the time by roughly four.
Required
Format
JPG for pages that are mostly photographs, PNG for text, diagrams and line art. Choosing JPEG for a page of small type puts visible artefacts around every letter; choosing PNG for a photograph produces a file several times larger than it needs to be.
Required
Which pages
The whole document by default, or a range like 1-3, 7. Exporting eighty pages at 300 DPI when you needed the cover is slow, large, and entirely avoidable.
Optional
The intended use
Decides everything else. Screen, print, and archive have different answers, and picking the resolution before knowing which one applies is how people end up re-exporting.
Optional
Total output size
Roughly the per-page size multiplied by the page count, and it grows fast. A forty-page document at 300 DPI as PNG can run to hundreds of megabytes. Worth checking before choosing rather than after waiting.
Optional
Whether the text is needed
If anyone will search, copy or extract from the result, images are the wrong output. This is the single most common reason a conversion is regretted, and it cannot be undone afterwards without OCR.
Optional
Page size in the original
Rendering is proportional to the page, so an A0 poster at 300 DPI is enormous where an A6 flyer is trivial. Large-format documents usually want a lower resolution than the same setting on A4.
Optional
How the images will be named
Output is named after the source with the page number appended and zero-padded, so a folder of them sorts correctly. Fine as a default and worth renaming before sending to anyone.
Optional
Who it helps
Who needs PDF pages as images?
Anyone building a presentation
Slides want pictures, not embedded documents. Exporting the pages you need at 150 DPI and dropping them in is faster than trying to reproduce a designed page, and it looks exactly like the original because it is the original.
Marketing and social media
Platforms take images and mostly do not take PDFs. A one-page flyer or a report cover becomes a post by way of a single export, and 150 DPI is comfortably enough for any screen.
Web and product teams
Documentation previews, thumbnails and catalogue images all start as a page in a PDF. Exporting at a controlled resolution gives a consistent set, which screenshots never do.
Print and reprographics
Some workflows want images rather than pages. 300 DPI is the usual floor for print, and knowing that the file will be roughly sixteen times the size of a 96 DPI version is part of planning for it.
Anyone sharing one page quickly
A picture opens instantly in a message, where a PDF needs a viewer and a download. For a single page that only has to be looked at, an image is genuinely the better format.
Teachers and students
Diagrams, figures and worked examples get lifted into worksheets and slides. Exporting the page and cropping is quicker than any attempt to extract the elements, and it keeps the original layout.
Do it properly
Best practices
Decide what the image is for before choosing a resolution
Screen use needs 96 to 150 DPI and print needs 300. Picking without knowing means either a soft image that cannot be printed or a file four to sixteen times larger than the job required.
Match the format to the page, not to habit
JPG for photographs, PNG for text and diagrams. The wrong choice is visible either as fuzz around letters or as a file several times too large, and both are decided before the export runs.
Export only the pages you need
Ranges cost nothing and save a great deal. A range of 1-3 finishes in seconds where a full eighty-page export at 300 DPI takes minutes and produces a zip nobody wants to download.
Split rather than export when the text still matters
If the result has to be read, searched or quoted from, keep it a PDF. Rasterising is irreversible, and recovering the words afterwards means OCR, which is slower and never quite accurate.
Check one page before exporting a hundred
Run a single page at your chosen settings and look at it. Two seconds of checking is a better use of time than discovering a resolution problem after a long export and repeating the whole thing.
Take the zip for more than a handful
Browsers throttle or silently block repeated automatic downloads, so a burst of forty images can arrive incomplete with no visible error. One archive always arrives whole.
Keep the original PDF
The images cannot be turned back into a document. As long as the PDF exists you can re-export at different settings; once it is gone, the pixels are all there is.
Avoid these
Common mistakes
Converting a document to images to make it smaller
It usually makes it much larger, and destroys the text layer on the way. Compress the PDF instead. That keeps it a document and is the operation that actually reduces size.
Exporting when you meant to split
If the goal is one file per page rather than one picture per page, split the PDF. Splitting keeps text selectable, quality perfect and files small; exporting gives up all three permanently.
Choosing 300 DPI for something that will only be viewed on screen
Use 96 to 150. A screen cannot show the extra detail, so the only effects are a slower export and a file several times larger: sixteen times, between 96 and 300.
Choosing 96 DPI for something that will be printed
Print at 300. A 96 DPI image looks acceptable on screen and visibly soft on paper, and the mistake is only discovered after printing, when re-exporting means finding the original again.
Using JPG for pages of small text
Use PNG. JPEG compression works by discarding fine detail, which is exactly what letterforms are made of, so text pages come back with a visible haze around every character.
Uploading confidential documents to an online converter
Rendering is easily done in the browser, so there is no reason to send a contract or a statement to someone else's server for it. Anything uploaded is subject to that provider's retention policy.
Deleting the PDF once the images exist
Keep it. Images cannot be converted back into a document, so the PDF is the only version you can re-export, edit or search. The images are an output, not a replacement.
FAQ
Frequently asked questions
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