PDF to images
What PDF to images actually does
Most converters render every page at one fixed resolution and hand back a zip. This page draws a contact sheet first, so the pages are chosen by looking at them rather than by counting in a separate reader, and the resolution is a decision: 72 for the screen, 150 for general use, 300 for print. A page the reader cannot draw is marked in the sheet, left out of the selection, and named, because a picture that is not the page is worse than no picture. Rendering a page and pulling out the pictures already embedded in it are different jobs; this page does the first, and the image extractor does the second.
How to use it
- Choose a PDF. Every page is drawn small and laid out as a contact sheet in this tab.
- Tick the pages to export, or use the all, none, odd, even and range controls.
- Set the resolution, the format and the background, then export. One page arrives as a single file and several arrive as a zip, with each page also downloadable on its own.
Useful for
- Lift two diagrams out of a long report at print resolution without exporting the other ninety pages.
- Produce screen-resolution page images for a web preview or a thumbnail strip.
- Export a design page on a transparent background so it can sit on another layout.
Limits worth knowing
- A page is drawn at the requested resolution only while the result stays inside the 16,777,216 pixel canvas area Safari allows. A larger page is drawn at the highest resolution that fits and the reduction is reported with both numbers.
- JPEG has no transparency, so asking for a transparent background with JPEG selected writes white and says so.
- Text in the output is pixels, not selectable text. Extracting the words is the text tool's job.
- Pulling out the images already embedded in the file is a different tool; this page draws whole pages.
Questions people ask
Is the file uploaded?
No. The PDF is read and drawn in this tab. Nothing leaves the browser.
Which resolution should be used?
72 DPI matches a screen, 150 is the usual choice for general use, and 300 is the print standard. Higher numbers make larger files and take longer.
Why is one page marked as not drawn?
The reader could not rasterize it, usually a font with no reachable data or a page that took too long. That page is left unselected, and exporting it anyway produces an image with the reason written across the top.