Free Online PDF to Image Converter (PNG and JPG)

Instructions

How to convert PDF files to images

Drag one or more PDF files onto the upload area, or click it to pick them from your machine. There is no limit on how many documents you can load at once, and you can keep adding files with the "Add more PDFs" button. Each entry in the list shows the file name, its page count and which pages are currently selected, while the header shows the chosen quality and the total number of pages that will be converted. When the list is ready, click "Convert" and choose between PNG and JPG.

Choosing the conversion quality

The "Quality" selector controls the render scale, which behaves exactly like the zoom level of a PDF viewer. At 1x the page is rasterized as if it were open at 100% zoom, at 1.5x as if it were at 150%, at 2x as if it were at 200%, and so on up to 7x. Because a PDF unit is 1/72 inch, the scale maps directly to a resolution: 1x is 72 DPI, 2x is 144 DPI, 4x is 288 DPI and 7x is 504 DPI.

Each step multiplies both the width and the height of the output, so the pixel count - and therefore memory usage, processing time and file size - grows with the square of the scale. A 4x render has four times the pixels of a 2x render and sixteen times the pixels of a 1x render. 2x is the default because it keeps text crisp on screen at a reasonable cost. Use 1x to 1.5x for quick previews and thumbnails, 2x to 3x for screen reading and slides, and 4x and above for printing or for zooming into small typography, tables and technical drawings. Very high scales on large-format pages can exhaust the browser's canvas memory, in which case convert fewer pages at a time.

Choosing which pages to convert

Every file in the list shows a "Pages:" label with the current selection, which starts as "All". Click the small page button next to it to open the page selector, where you can type the pages you want for that specific document. Because each file carries its own selection, different documents in the same batch can export different pages.

Leave the field blank to convert the entire document. Type a single number such as 3 to convert only that page, a comma-separated list such as 1,4,9 to convert specific pages, or a range with a dash such as 2-7 to convert everything between two pages, inclusive. The formats can be combined freely: 1,5-8,12 converts page 1, pages 5 through 8, and page 12. The selector validates the expression as you type and previews how many pages it resolves to, so an invalid entry can never be applied.

Spaces are ignored, repeated pages are converted only once, and the output is always ordered from the lowest page number to the highest regardless of the order you typed. A reversed range such as 8-5 is interpreted as 5-8.

Download as PNG

PNG uses lossless compression, so the generated image is a pixel-exact copy of the rendered page. It preserves sharp text edges, thin lines, diagrams and flat color areas without compression artifacts, and it supports transparency. Files are noticeably larger than JPG, which makes PNG the right choice for documents with charts, screenshots, vector illustrations or small typography that must stay legible when zoomed.

Download as JPG

JPG uses lossy compression at 92% quality and renders each page over a white background. The result is much lighter than PNG and ideal for scanned pages, photographs and any situation where file size matters, such as email attachments, web galleries or messaging apps. Very fine text and hard edges may show slight artifacts because part of the original information is discarded during compression. Raising the quality scale is usually a better way to recover legibility than switching formats.

Image naming and ZIP structure

All generated images are packed into a single .zip file. Each image is named after the PDF it came from, followed by a dash, the word "page", another dash and the page number. A file named report.pdf with three pages produces report-page-1.png, report-page-2.png and report-page-3.png. The number always refers to the original page in the source document, so converting only 5-7 yields report-page-5.png, report-page-6.png and report-page-7.png rather than a renumbered sequence. Because the original file name is preserved, images from different PDFs never collide inside the same archive and you can always trace an image back to its source document.

Managing the file list

Click the "X" on the right side of any item to remove that PDF before converting, or use "Clear all" to start over. Files that are not PDFs are ignored automatically, and documents that cannot be read - corrupted or password protected - are reported in a message instead of interrupting the batch.

Privacy

All processing happens entirely in your browser using PDF.js for rendering and JSZip for packaging. No file is uploaded to any server, which means confidential documents never leave your machine.

What is rasterization

A PDF page is a set of drawing instructions: text operators referencing embedded fonts, vector paths, images and color spaces. Rasterization executes those instructions at a chosen resolution and samples the result onto a pixel grid. The output is an image that looks exactly like the page but no longer contains text, fonts or vector data, so it cannot be searched, selected or reflowed. Because vector content is resolution independent, a higher scale genuinely produces more detail rather than simply enlarging pixels - which is why a 4x render of a chart stays sharp while upscaling a 1x render of the same chart does not. If you need to keep the document structure instead, use the PDF Splitter to extract pages as individual PDF files.

PNG versus JPG

PNG is a lossless raster format based on DEFLATE compression, designed for graphics with flat colors, sharp boundaries and transparency. JPG is a lossy format built on discrete cosine transform compression, designed for photographic content with smooth gradients. For text-heavy documents PNG usually looks better; for scanned photos JPG produces far smaller files with an acceptable visual difference.