How to Convert PNG to PDF Online — 4 Easy Steps
- Add PNGs in page orderChoose up to 20 PNG files. The file-picker order becomes the page order.
- Choose a page sizeFit to image keeps each screenshot at its own shape; A4 or Letter centres it on paper.
- Check the quality settingIt starts at 95. Screenshots and charts need it there; dropping to 85 puts visible halos around small text.
- Create and downloadOne click encodes the pages and assembles the PDF in this tab. Name the file on the result screen, then save it to your device.
Frequently Asked Questions
Can the PDF keep my PNG transparency?
No. PDF pages here are stored as JPEG, which has no alpha channel, so transparent pixels are composited onto white. Place the artwork on the background you want before converting.
Why does the quality start at 95 and not 85?
PNG sources are usually screenshots, charts, and line art, where JPEG artifacts appear around sharp edges long before they would in a photograph. 85 is a photography default and is too low for text.
Why is my screenshot page enormous in the PDF?
Fit-to-image computes page size at 96 pixels per inch, and retina screenshots contain two or three times as many pixels as their logical size. Choose Letter or A4 if the document will be printed.
Will it accept a JPG as well?
No, and deliberately. JPG sources need different quality advice and have no transparency to explain, so they have their own tool at JPG to PDF.
How do I keep the file size down?
Reduce the pixel dimensions of the PNGs before converting rather than lowering the quality. Removing pixels is invisible at the right size; lowering quality damages every edge on the page.
Can I get the PNGs back out of the PDF unchanged?
No. The pages are JPEG by then. Exporting with PDF to PNG returns lossless copies of the JPEG pages, not your original lossless files, so keep the source PNGs.