Calculator
What the PDF to JPG does
PDF to JPG: renders each page with pdf.js at the DPI you choose and encodes it as a JPEG, giving one image per page with a download link and a download-all button. Everything runs in your browser and the file is never uploaded.
The PDF to JPG converts the file you choose without uploading it anywhere. Everything runs on your own device, which means no waiting and no copy left on a server.
Typical users are someone splitting a long report. Most PDF chores are simple, yet the usual tools want an account and an upload first.
The document is read into memory by your browser and never uploaded, so private paperwork stays private.
The sections that follow cover the fields, the method, and one full example computed from the defaults.
What do the PDF to JPG fields mean?
The PDF to JPG uses 4 inputs. Each input has a default that makes sense on its own, so a partial edit still gives a valid result.
| 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) |
| JPEG quality % | accepts 10 to 100 | 90 |
How does the PDF to JPG 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.
Checks happen up front, so errors surface next to the form instead of hiding in the output.
What a typical run looks like
You provide: PDF File, Pages (all, or e.g. 1-3,5), Resolution and JPEG quality %
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: a processed file plus a short status summary in the tool panel.
The tab does the processing, so speed tracks your hardware and very large files fail on memory rather than on a quota.
Read next: How PDF Compression Actually Works
How to use it
- Choose your file under PDF File, or drag it onto the drop area.
- Set 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).
- Key in JPEG quality % (10 to 100).
- Press Convert to JPG.
- You get Status, Images and Total size back.
- Copy Link is the quickest way to send the exact scenario to someone else.
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.
- Results are informational: check anything consequential against a second source.
- Results are only as good as the inputs. Check your units before reading anything into the output.
- Performance scales with your own hardware, since no server does the work.
Frequently asked questions
4 things: PDF File, Pages (all, or e.g. 1-3,5), Resolution and JPEG quality %. Nothing starts empty, which means a single edit is enough to get a meaningful answer.
JPEG quality % accepts 10 to 100. Out-of-range entries are refused up front, which is safer than silently clamping them.
Your file stays on your machine. Nothing is transmitted, stored or queued for processing elsewhere.
Nothing at all. There is no registration, no paywall and no per-use quota.
It implements the published definition directly, without shortcuts or approximations.