PDF to Image Converter

One PDF page, one image: a Letter page at 200 dpi saves as 1,700 × 2,200 px

This PDF to image converter draws each page of a PDF as a picture and saves it as a JPG or PNG file. At 200 dpi, a US Letter portrait page becomes a 1,700 × 2,200 px image, and a 10-page PDF with every page selected gives you 10 images. Pick only the pages you need and download one image as a single file, or several as one ZIP file.

Reading and drawing the PDF is done inside this browser by PDF.js, Mozilla's open-source engine. Your file and password are never sent to a server, and only the engine file is downloaded the first time. While drawing each page, the converter also looks for scanned pages and tells you their original resolution, and the saved files carry the dpi you chose.

When to turn a PDF into images

A PDF keeps the layout and fonts of a multi-page document, but you need an app that opens PDFs every time you want to look at it. JPG and PNG are single-picture formats that show up right away in chat previews, phone photo apps and web page content. So when all you need is to show the document as it looks, converting it to images works well.

• Posting one page of a notice to a group chat: people read it straight in the conversation without downloading and opening a file.
• Putting a document into a blog post or a product page: an image in the body is easier for readers than a PDF attachment, because they never leave the page.
• Submitting a document through an upload form that only accepts image files: turn a certificate or confirmation PDF into a JPG and upload that. If there is a size limit, start with 150 dpi.
• Pasting one page of a table or drawing into a presentation or another document: saving only that page as PNG keeps lines and text crisp.

If the recipient needs to edit or copy the text, send the PDF or the original document instead. Text on an image page cannot be selected or searched.

How to use the converter

1. Drop or choose a PDF. Drag a PDF file onto the panel or press “Choose PDF”. If you have no file handy, “Open example” loads a made-up 3-page newsletter.
2. Pick the pages to save. All pages are selected at first. Clear the checkbox under a page, or type a range such as 1-3, 5 in the “Pages to save” box. Click one checkbox, then hold Shift and click another to change every page in between at once.
3. Set the format and resolution. Choose JPG or PNG and one of 96, 150, 200 or 300 dpi. For JPG you can also set the quality from 50 to 100. If a page is a scan, a “Scan orig.” label appears on the resolution buttons.
4. Enlarge a page and check the file size. Click a page to see, over the panel, the exact image that will be saved, together with its pixel size and file size. “Actual pixels” shows one image pixel as one screen pixel, so you can check that small print is still readable.
5. Save. One page gives a single image file; several pages give one ZIP file. If many pages take a while, the save button turns into “Stop”. On a phone, a “Share” button appears after saving so you can send the image straight to a chat or photo app.

Choosing a resolution: 96, 150, 200 or 300 dpi

A PDF states page sizes in units of 1/72 inch (the default user space unit in ISO 32000-1). A4 is 595 × 842 units, or 8.27 × 11.69 inches. Since dpi means how many pixels are drawn per inch, the saved size is “page size in inches × dpi”, rounded up. So at the same dpi, a larger sheet gives more pixels.

Example page 1 is a US Letter portrait page with a title, paragraphs and a bar chart, converted with this tool in Chrome and measured. A page packed with text or photos can be several times larger at the same resolution. The format comparison below lists other kinds of pages.

Doubling the resolution quadruples the pixel count, and drawing time and memory grow with it. Browsers on iPhone and iPad handle a canvas of only up to 4,096 × 4,096 pixels (about 16.78 million), so this converter scales larger pages down to fit. For example, an A3 page at 300 dpi would be about 17.4 million pixels, so it is saved at about 294 dpi, and the resolution hint tells you so.

JPG vs PNG: file size depends on the kind of page

JPG is a lossy format that drops detail the eye barely notices to save space, while PNG is lossless and keeps every pixel. It is often said that PNG is bigger, but when measured, the difference depended heavily on the kind of page.

Measurement These values come from converting the example PDF's 3 pages and 3 body pages of ISO 32000-1 in Chrome on 2026-10-20. File sizes can differ a little between browsers because each makes JPG and PNG in its own way.

JPG quality changes the file size a lot. Saving example page 1 at 200 dpi gave 122 KB at quality 50, 149 KB at 70, 219 KB at 90 and 559 KB at 100. Going from 90 to 100 makes the file 2.6 times larger, yet the visible difference is small. When you hit an upload size limit, lower the quality to 70–80 first and only then lower the resolution. In the enlarged view you can zoom in and see right away whether text edges blur at a lower quality.

Scanned PDFs are saved at their original resolution

A PDF made by a scanner or a phone scanning app holds one photo per page. Drawing such a page at a higher resolution than the photo adds no new detail, so it does not get sharper, only larger. A PDF that stores text and lines as vector shapes, on the other hand, really does get sharper as you raise the resolution.

While drawing a page, the converter checks whether one image covers 85% or more of the page. If so, it treats the page as scanned and divides that image's pixel count by the size it is drawn at, in inches, to find the original dpi. The page tile shows a label such as “Scan 150”, and the resolution buttons offer that value as “Scan orig.”. If the original is not 96, 150, 200 or 300 dpi but lies between 72 and 600 dpi, one extra button for that value appears.

If a PDF mixes scanned and text pages, the file line also shows how many scanned pages there are. In that case choose a resolution for the text pages' purpose, and there is no need to go far above the scan's original.

The resolution is written into the saved file

JPG and PNG files that a browser makes from a canvas often have no resolution information. Document and print programs then guess 72 or 96 dpi and may place a page saved at 300 dpi several times larger than the paper. This converter writes the dpi you chose into the JFIF header of the JPG (density unit, horizontal and vertical density) and into the pHYs chunk of the PNG (pixels per meter), so a program that respects this information, or a print at 100%, gets the original paper size.

How to write the page range

A comma separates groups and a hyphen marks a continuous range. Full-width digits, the wave dash (〜) and the ideographic comma (、) are read the same way. While you type, the checkboxes update each time the value is valid, and when you leave the box you are told about page numbers that the PDF does not have or about a wrong format. In the other direction, changing a checkbox rewrites the box in a tidy form such as 1-3, 5.

Password-protected PDFs

If a PDF asks for a password when you open it, enter that password in the box and it is opened and converted inside this browser. If it is wrong you can try again, and the password you enter is never saved or sent. A PDF whose password you do not know cannot be opened. Files locked with a separate document security (DRM) program by a company or organization do not open in this converter either.

What you lose when a page becomes an image

• You cannot select, copy or search the text. If you need the text, use a PDF text extractor.
• Links and table-of-contents jumps inside the document no longer work.
• You cannot type new values into form fields. Values already filled in usually stay as they look, but some forms may lose them, so check in the enlarged view.
• A transparent background is filled with white paper.
• Names, contact details and signatures in the document stay in the image as they are. Check for anything to hide before you send it.

The original PDF file is not changed.

Common mistakes

• Saving a scanned PDF at 300 dpi or more: if the original is 150 dpi, going higher leaves it just as blurry and only increases the file size. Look at the “Scan” label on the page and the “Scan orig.” button first.
• Lowering the resolution first when an upload size limit blocks you: small text blurs first when you lower the resolution. Lowering the JPG quality to 70–80 usually protects text better.
• Images that look blurry after sending them in a chat: some chat apps shrink photos when sending. Use the original-quality option or send the image as a file.
• A ZIP file that will not open on a phone: save the pages you need one at a time, or save and then use “Share” to put them into your photo app.
• An image or document that only had its name changed to .pdf: if the start of the file has no PDF marker, the converter tells you right away without loading the engine. A picture is already an image, so it needs no conversion.

Limits and cautions

• Files up to 200 MB are accepted, and there is no page limit. However, saving keeps all the chosen pages' images in memory while building the ZIP, so hundreds of pages as 300 dpi PNG can slow down or freeze a phone. In that case, save in smaller page ranges.
• The first time you open a PDF, the conversion engine (about 0.4 MB compressed, about 1.4 MB unpacked) is downloaded, which can add a few seconds.
• PDF.js is a different program from Adobe Acrobat, so in rare cases an unusual font or effect may be drawn differently from the original. Compare important documents with the original in the enlarged view.
• The ZIP only bundles files and does not compress them, because JPG and PNG are already compressed formats and compressing them again barely shrinks them.

Reference date The pixel and file size measurements and the sources were checked on 2026-10-20. The conversion engine is PDF.js 3.11.174.

Sources

• 01Mozilla — PDF.jsApache License 2.0. This converter uses 3.11.174 and, as the advisory recommends, turns isEvalSupported off because of a known font-handling vulnerability (GHSA-wgrm-67xf-hhpq)
• 02ISO 32000-1:2008 Document management — Portable document format (Adobe public copy)8.3.2.3 User space: default unit of 1/72 inch; 7.7.3.3 UserUnit default of 1.0
• 03MDN — HTMLCanvasElement.toBlob()image/jpeg quality is set from 0 to 1; if not given, the browser default applies
• 04MDN — <canvas>: Maximum canvas sizeCanvas area limit of 4,096 × 4,096 pixels on iOS devices
• 05W3C — Portable Network Graphics (PNG) Specification (Third Edition)Recommendation of 2025-06-24. 11.3.4.3 pHYs: intended pixel size for display (pixels per meter)
• 06ITU-T T.871 — JPEG File Interchange Format (JFIF)May 2011 edition. Density unit and horizontal and vertical density in the JPG header

Frequently asked questions

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