How to convert a PDF to JPG on Mac — every page, not one at a time
To convert a PDF to JPG on a Mac, open it in Preview, choose File then Export, and pick JPEG. That saves one page per export. For every page at once, PDF to JPG renders them all in your browser, nothing uploaded, and hands back one .zip.
Preview converts a PDF to a JPG without anything installed, and for a one-page file it is the right answer. The trouble starts on page two. A JPEG holds a single picture, so Preview saves a single page and stops, and a twenty-page document means twenty trips through the same Export sheet. This covers the Preview route, where it runs out, and the browser route that does the whole document in one pass.
How do I convert a PDF to JPG on a Mac?
Open the PDF in Preview, select the page you want in the sidebar, choose File then Export, set Format to JPEG and save. That exports one page. To get every page as its own JPG in one go, open PDF to JPG in Safari or Chrome instead and download the pages together as a .zip.
Preview is the better tool in one specific case, and it is worth saying which. Its Export sheet has a Resolution box you can type into, so a single page at 300 pixels per inch for a print shop is a Preview job. The browser tool has two fixed settings and tops out lower than that. What Preview cannot do is repeat itself across a document.
How do I change a PDF to a JPG on a MacBook, every page at once?
Open the tool in your browser
Open PDF to JPG in Safari, Chrome or Firefox. It is a web page, so there is nothing to install and no account to make.
Drop in the PDF
Drag the file from Finder onto the upload area, or click it and choose the file. The page count appears once the file has been read.
Pick a resolution
Standard is about 108 DPI and suits screens, slides and chat. High is about 216 DPI, for printing or zooming in.
Set the JPG quality
The slider runs from 50% to 100% in steps of five and starts at 90%. Lower means smaller files and softer edges around text.
Convert
Click Convert to JPG. Every page is rendered on your Mac, with a progress bar, and a thumbnail of each page appears when the run finishes.
Download
Click download. A one-page PDF saves as a single JPG. Anything longer saves as one .zip, which Finder unpacks into a folder when you double-click it.
The files come out named after the PDF with the page number on the end: Report.pdf becomes Report_page-01.jpg, Report_page-02.jpg and so on, inside Report_jpg.zip. The numbers are padded to two digits, so the pages stay in order even in apps and upload forms that sort names character by character.
How big are the JPGs, and what resolution do I get?
The size comes from the page, not from your screen. A US Letter page renders at 918 by 1188 pixels on Standard and 1836 by 2376 on High. An A4 page on High is 1786 by 2526. There is no width cap, so a large-format page comes out proportionally larger.
We ran this on a test file and read the JPGs back with the browser's own image decoder, not the library that drew them. Two things are worth knowing. A page that carries a rotation flag comes out the way a viewer shows it: a Letter page rotated a quarter turn rendered 2376 wide by 1836 tall, landscape, not sideways. And 216 DPI is the ceiling. If a printer asks for 300 DPI, export that page from Preview and type 300 into its Resolution box, because this tool has no setting that reaches it.
JPG is the right format for scans and photo-heavy pages. On a page that is mostly text it leaves faint halos around the letters, and PDF to PNG is noticeably crisper for those. The plain PDF to JPG walkthrough has the full JPG-versus-PNG rundown.
How can I convert a PDF to JPG on my Mac for free?
Both routes here are free. Preview ships with macOS, and PDF to JPG has no page limit, no sign-up and no watermark. The difference from the converters at the top of the search results is where the work happens: most of those upload your PDF to a server and send images back, and this one renders the pages inside your browser tab.
That is not a slogan, it is how the page is built. The PDF engine and its worker are bundled with the site and load from it, not from a CDN. No part of your file is sent anywhere, and there is no server to send a file to. For a bank statement or a signed contract, that is the reason to prefer it over an upload site. macOS also has a third free route, an Automator Quick Action built on Render PDF Pages as Images, which is worth setting up if you do this every week and not worth it for one file.
Why did my PDF stop converting, or not convert at all?
The cause we can reproduce is the tab going into the background. Pages are drawn on the browser's animation frames, and browsers stop delivering those to a tab you cannot see. Switch tabs or minimise the window mid-run and the progress bar waits until the tab is in front again. Keep it visible for a long document.
- A PDF that needs a password to open is refused with a message, not rendered blank. Run it through Unlock PDF first.
- There is no page picker. The tool converts every page, so for pages 3 to 5 of a long report, pull them out with Extract Pages and convert that file.
- Every rendered page stays in memory for as long as the results are on screen. A few hundred pages on High is a lot to ask of an older MacBook, so use Standard or split the file first.
How do I turn a JPEG into a PDF on a MacBook?
That is the reverse trip, and it has its own tool. JPG to PDF takes one or more JPGs and builds a PDF with one image per page, also on your Mac. If you want to do the same job on a phone, the iPhone version of this guide covers the screenshot route and what the Files app does with the .zip.
