Calculator
What the PDF to PNG does
PDF to PNG: renders each page with pdf.js at the DPI you choose and saves it as a lossless PNG, one image per page. Everything runs in your browser and the file is never uploaded.
The PDF to PNG converts the file you choose without uploading it anywhere. Processing is local, so speed depends on your machine rather than someone else’s server load.
Most PDF chores are simple, yet the usual tools want an account and an upload first. The PDF to PNG exists to take that particular chore off your hands.
There is no account, no upload and no server round trip, because the page does the work itself.
Further down the page: what each field expects, how the result is derived, and one example worked from the defaults.
What do the PDF to PNG fields mean?
The PDF to PNG uses 3 inputs. Starting values are already in place, which saves the usual blank-form hesitation about what a field wants.
| Field | What to enter | Default |
|---|---|---|
| PDF File | stays on your device | none |
| Pages (all, or e.g. 1-3,5) | required | all |
| Resolution | choose from 72 DPI (screen, smallest), 150 DPI (good for viewing) or 300 DPI (print quality) | 150 DPI (good for viewing) |
How does the PDF to PNG work?
Each output is derived from the inputs above in a single pass; there is no hidden state carried between runs, so the same inputs always give the same conversion.
Validation is deliberately strict: silently coercing a bad value is how wrong numbers get trusted.
What a typical run looks like
You provide: PDF File, Pages (all, or e.g. 1-3,5) and Resolution
What happens: the file is read into memory by your browser, processed locally, and offered back as a download. It is never uploaded.
You get back: the result as a file you can save, with a one-line summary beside it.
Nothing queues behind a server, so the wait is your device working, and the size limit is set by memory rather than by an upload cap.
How to use it
- Choose your file under PDF File, or drag it onto the drop area.
- Key in Pages (all, or e.g. 1-3,5).
- Pick a value for Resolution: the options are 72 DPI (screen, smallest), 150 DPI (good for viewing) or 300 DPI (print quality).
- Press Convert to PNG.
- The results panel then shows Status, Images and Total size.
- The link encodes your inputs, so saving it is enough to reproduce the result later.
What this tool does not do
- Very large documents are limited by your device memory, not by a server quota.
- Encrypted or password-protected files must be unlocked before they can be processed.
- There is no audit trail: if you need one, record the inputs alongside the output.
- Because everything runs locally, processing speed depends on your device rather than our servers.
Frequently asked questions
Only PDF File, Pages (all, or e.g. 1-3,5) and Resolution. Defaults are loaded for all of them, which means a single edit is enough to get a meaningful answer.
Your file stays on your machine. Nothing is transmitted, stored or queued for processing elsewhere.
Free, and there is no upsell. The whole tool is the free version.
It matches what you would get working it out by hand, with fewer opportunities to slip.