PDF to Image Converter – PDF to PNG & JPG Online

How this PDF to image converter turns pages into PNG or JPG

A PDF to image converter is the quickest way to put one page of a document where a PDF will not go: a slide in a chat message, a scanned form in an upload field that accepts only JPG, a page of a report in a blog post, or a thumbnail for a document library. This tool opens the PDF with PDF.js — the same rendering engine Firefox uses for its built-in PDF viewer — draws each page you pick onto a canvas, and saves that canvas as PNG, JPG or WebP.

Everything happens in your browser. The PDF.js worker, fonts, character maps and image decoders are served from this site, so the PDF is read from your disk into memory and never sent to a server. That matters for the documents people most often convert: contracts, invoices, bank statements and ID scans. You can disconnect from the network after the page has loaded and the conversion still works.

Resolution is set in DPI, because a PDF page is measured in points (1/72 inch), not pixels. 72 DPI gives one pixel per point — an A4 page becomes 595×841 pixels. 150 DPI (the default) gives 1240×1753 for A4, sharp on any screen. 300 DPI gives 2480×3507, the usual print resolution. Higher DPI makes larger files and takes longer, so pick the lowest setting that looks right where the image will be used.

PNG keeps text and line art perfectly crisp and is the right choice for slides, forms and diagrams. JPG is far smaller for pages that are mostly photographs or scans, at the cost of slight blur around text. WebP sits in between and is good for websites. Converting a page to an image turns its text into pixels: the result is not searchable or selectable, and links and form fields stop working. Keep the PDF as the original.

Select pages with a range such as 1-3, 5, 8- (8 to the end). A single page downloads straight away; several pages download as one ZIP with numbered files such as report-page-01.png, in page order. Password-protected PDFs open once you type the password, which is checked locally. Very large pages, such as posters or A3 drawings at 300 DPI, are scaled down to fit the roughly 16-megapixel limit browsers put on a canvas, and the tool tells you when that happens.

What happens when you convert a PDF page

PDF.js parses the file, lays out each page you select from its fonts, vector drawing commands and embedded images, and paints the result onto a canvas at the resolution you chose. The canvas is then encoded as PNG, JPG or WebP. Pages are rendered one at a time on a white background, so pages with no background of their own do not come out transparent.

Pixel sizes at each resolution

A PDF page is measured in points, 72 to the inch, so the output size is the page size multiplied by DPI ÷ 72. These are the sizes this tool produces for the two most common paper sizes:

• A4 (210×297 mm): 595×841 at 72 DPI, 793×1122 at 96, 1240×1753 at 150, 1653×2338 at 200, 2480×3507 at 300.
• US Letter (8.5×11 in): 612×792 at 72 DPI, 816×1056 at 96, 1275×1650 at 150, 1700×2200 at 200, 2550×3300 at 300.
• A3 at 300 DPI would exceed the browser canvas limit, so it is rendered at 3444×4870 — about 295 DPI.

Choosing a format

• PNG: lossless. Best for text, spreadsheets, slides, diagrams and forms. Larger files for photo-heavy pages.
• JPG: lossy and much smaller for scans and photos. Text gets faint ringing around the letters, more visible at low quality.
• WebP: usually smaller than JPG at the same quality. Fine for websites; some older upload forms still reject it.

Common uses

• Uploading a scanned form or certificate to a portal that accepts only JPG or PNG.
• Posting a slide or one page of a report to social media or a chat app.
• Making a cover thumbnail for a document library, shop listing or blog post.
• Pasting a page into a design tool or slide deck that cannot import PDF.

Limits to know about

The image is a picture of the page: text cannot be searched or copied and hyperlinks are lost. Interactive form fields are drawn as they currently appear. Very large pages are scaled to fit about 16.7 million pixels per canvas. Every converted image is kept in memory until the ZIP is built, so a few hundred pages at 300 DPI can need several hundred megabytes — convert long files in batches with the page range, especially on a phone.