About batch PDF to images
This is the most computationally demanding tool in the batch family, because every page has to be genuinely rasterised — the content stream is interpreted, fonts are shaped, vector paths are filled and the result is drawn into a pixel buffer at your chosen resolution. That is real work per page, unlike rotation, which just changes a number. Resolution therefore deserves attention, because its cost is quadratic: doubling DPI from 150 to 300 quadruples the pixel count and roughly quadruples both the memory needed and the output size. A fifty-file batch at 600 DPI can produce several gigabytes of images, which is the kind of thing that ends a browser tab. The folder-per-file option matters more than it looks at this scale. Without it, a batch of thirty documents becomes one flat pile of hundreds of images whose only distinguishing feature is a filename prefix; with it, the ZIP mirrors the structure you started with and stays navigable.
How to batch PDF to images
- 01
Add the PDFs
Drop in every document you want rendered to images.
- 02
Pick format and resolution
PNG at 150 DPI suits most uses. Reserve 300 DPI and above for print, and expect much larger output.
- 03
Keep folders per file
This keeps the ZIP navigable when the batch produces hundreds of images.
- 04
Run and download
Pages render one at a time with live progress, then arrive as a structured ZIP.
What this tool does
- PNG, JPG and WebP output at four resolutions from thumbnail to archival
- A folder per source document, so a large batch stays organised
- Sequential page rendering, which keeps peak memory to one page buffer at a time
- Live progress showing the current file and page, since this is the slowest batch operation
- A file that fails to render is reported individually and does not stop the batch
Limitations worth knowing
Every PDF tool has constraints. Stating them plainly is more useful than discovering them halfway through your work.
- Rasterising is genuinely intensive, and this is the slowest tool here. A large batch at high DPI can take a long time and strain device memory.
- Output size grows with the square of resolution — 600 DPI produces roughly sixteen times the data of 150 DPI.
- Images contain no text layer, so the output is not searchable. Use Batch Extract Text if you need the words.
- Converting to images discards vector precision permanently; line art becomes pixels at a fixed resolution.
How your file is handled
This tool runs entirely inside this browser tab. When you choose a file, your browser reads it from your own disk and hands the bytes to JavaScript running on this page — no network request carries your document anywhere. You can confirm that yourself: open your browser’s developer tools, switch to the Network panel, and run the tool. You will see no upload.
Nothing is stored after the fact. Closing or reloading this tab discards the file, the result and everything derived from them, because none of it ever left your machine. Read how local processing works.
Questions about batch PDF to images
What resolution should I choose?
150 DPI for general use and screen viewing, 300 DPI when the images will be printed. Remember the cost is quadratic: 300 DPI is about four times the data of 150, and 600 DPI about sixteen times.
PNG or JPG?
PNG for pages of text, line art and diagrams, where lossless compression keeps edges crisp. JPG for photographic pages, where it is dramatically smaller with no visible penalty. WebP splits the difference and is smaller than both.
Why is this so much slower than the other batch tools?
Because each page is actually rendered: fonts shaped, paths filled, pixels drawn. Rotation changes a number and compression re-encodes streams; rasterising does the full drawing work for every page.
Will the output be searchable?
No. Images have no text layer at all. If you need the text, use Batch Extract Text on the original PDFs, or OCR the images afterwards.
Tools that pair with this one
- PDF to JPGRender each page of a PDF as a JPG image, at the resolution you pick.
- Batch Images to PDFTurn each image into its own PDF, sized how you choose.
- Batch Compress PDFCompress a whole folder of PDFs in one pass and get a ZIP back.
- Batch Extract Text from PDFPull the text out of a whole set of documents into plain text files.
- Batch Rotate PDFStraighten sideways pages across a whole set of scanned files.
- OCR PDFTurn a scanned PDF into something you can search — without uploading it.