Choosing a DPI
DPI sets how many pixels each inch of the page becomes. A US Letter page is 8.5 × 11 inches, so it gives roughly 612 × 792 pixels at 72 DPI, 1275 × 1650 at 150 DPI and 2550 × 3300 at 300 DPI.
- 72 DPI: small files for quick previews and chat.
- 150 DPI: sharp on screen and a good default for sharing.
- 300 DPI: for printing or text recognition. Files are about four times larger than at 150 DPI.
JPEG or PNG?
JPEG is smaller and works well for photos and scans. PNG is lossless, so text and line art stay crisp, but files are larger. Pages with a lot of text or charts usually look better as PNG; pages that are mostly photos are better as JPEG.
One page or many
Select the pages you want. A single page downloads as one image; several pages download as one ZIP with files numbered in page order, such as report-page-01.jpg.
Questions
Can I convert a password-protected PDF?
Yes, if you know the password. You are asked for it, and it is only used in your browser to open the file.
Can I convert only some pages?
Yes. Every page is shown as a thumbnail; click to select or deselect pages, or use Select all and Select none.
Why is my 300 DPI image so large?
Pixel count grows with the square of DPI, so 300 DPI has about four times as many pixels as 150 DPI. Use 150 DPI or JPEG for smaller files.
Are my files uploaded anywhere?
No. The conversion runs in your browser and the page is not allowed to connect to other servers, so your files never leave your device.