Why turn a PDF into images?
PDFs are great for documents but awkward everywhere else. You can't post a PDF to Instagram or a WhatsApp Status, many chat apps show it as a file icon instead of a picture, and slides or presentation tools often only accept images. PDF to JPG renders each page as a picture you can share, preview, crop or drop into another document.
Common uses are sharing one page of a menu, flyer or timetable in a chat, posting a slide or infographic on social media, adding a page to a presentation, and saving a ticket or boarding pass as an image for quick access on your phone.
Normal vs. High quality
Quality is set in DPI, or dots per inch: how many pixels each inch of the page becomes. Normal (150 DPI) turns an A4 page into a 1240 × 1754 image, which is sharp on any phone or laptop screen and usually 200 to 600 KB. High (300 DPI) gives 2480 × 3508 pixels, enough to print the page at full size or zoom into small print, with files around 1 to 3 MB.
For sharing in chats and on social media, Normal is plenty: those apps shrink large images anyway. Choose High for printing, for documents with small text, or when you'll crop part of a page.
What changes when a PDF becomes a JPG
Most PDFs store text as text, so it stays razor-sharp at any zoom and you can select and search it. A JPG is a picture of the page: text can't be selected or edited, and it gets blurry if you zoom far past the resolution you chose. If you need to edit the words, use PDF to Word instead.
Transparent areas become white, links and form fields stop being clickable, and the page is shown as it appears on screen, including filled-in form values and highlights.
Large documents
Each page is rendered one at a time in your browser, so a long PDF takes a little while: roughly a second per page on a recent phone at Normal quality. Up to 100 pages are converted per file. For longer documents, cut out the pages you need with Split PDF first, which is faster anyway.
Download all (ZIP) puts every page in one ZIP file, named after your PDF with the page number, for example report-1.jpg, report-2.jpg. On iPhone, the Files app opens ZIP files with a tap.
Password-protected and scanned PDFs
PDFs with an open password can't be converted until the password is removed. Open the file in your PDF reader, enter the password, and save or print it to a new PDF without one. PDFs that only restrict editing or printing usually convert fine.
Scanned PDFs are already images inside, so converting them simply gets those images back out, at the DPI you choose. If a scan looks faint, High quality won't add detail that isn't there, but it won't lose any either.
Going the other way
Edited a page as an image, or want to put a few pages back together? Image to PDF turns JPGs back into a PDF, one image per page, and Merge PDF combines that with the rest of the original document. Both run in your browser like this tool.
How do I save the images to my photo gallery?
On iPhone, tap Download JPG under a page. Safari saves it to the Files app, in Downloads. Press and hold the image there and choose Share → Save Image to put it in Photos. For a ZIP, tap it in Files to unpack it, then select the images and save them together.
On Android, downloads land in the Downloads folder and show up in Google Photos or your gallery app straight away. On a computer, they go to your Downloads folder. For a slideshow or a post, the images are already in page order, because their names end in the page number.
Your files stay on your device
The conversion uses pdf.js, the PDF engine built into Firefox, running entirely in your browser. Your PDF is never uploaded, so contracts, statements and medical records stay private. Nothing is stored after you close the page.