When to turn PNG images into a PDF
PNG is the format of screenshots, diagrams, charts, exported slides and many scanner apps. A PDF is easier to share, print, attach to a form or upload to a portal that only accepts PDFs. Common jobs:
- collecting screenshots of a bug, an order or a conversation into one document
- turning exported slides or a flowchart into a printable handout
- submitting a scanned certificate or ID that your phone saved as PNG
- bundling a set of diagrams into one file for a report
How to convert PNG to PDF
- Add your images. Choose files, drop them on the box, or press Ctrl+V to paste a screenshot straight from the clipboard. JPG, WebP and GIF files work too; they are converted to PNG first.
- Arrange them. Each image becomes one page, in the order of the list. Use the arrows to move an image up or down.
- Choose the page size. Same size as each image is the default, because screenshots rarely match paper. Choose A4 or US Letter if you will print, then pick the orientation (Auto turns each page to match its image).
- Handle transparency. If any image has see-through areas, decide whether to keep them or put them on white.
- Convert and download. One image keeps its own name; several become “images.pdf”.
Lossless by design
PNG is lossless: every pixel is stored exactly. This converter keeps it that way. The PNG data goes into the PDF without being turned into JPG, so text in screenshots stays razor sharp and the lines in diagrams do not blur. The trade-off is size. A full-screen screenshot is often 0.5 to 2 MB, and a PDF of twenty of them can pass 20 MB.
| Your images | Best tool | Why |
|---|---|---|
| Screenshots, diagrams, charts, slides | PNG to PDF (this tool) | Lossless keeps text crisp |
| Phone photos, scanned photos | JPG to PDF | JPG keeps photo PDFs much smaller |
| Mixed, and the PDF is too big | Either, then Compress PDF | Shrinks the images inside the PDF |
Transparency and printing
PNG images can have transparent areas, such as a logo without a background. PDF supports this, so by default those areas stay transparent and the logo sits directly on the page. On screen that looks right.
Some printers and older PDF viewers draw transparency badly, sometimes as black. If you plan to print, tick “Put transparent areas on white”. Each transparent image is placed on a white background before it goes into the PDF, so it looks the same everywhere.
A worked example
You need to send a support team twelve screenshots showing a payment error, and their form accepts one PDF up to 10 MB.
- Paste or drop the screenshots, then order them from first click to error message.
- Keep Same size as each image and no margin, so nothing is shrunk.
- Convert. The tool reports “Your PDF with 12 pages is ready (6.8 MB)”. It fits, and every pixel of text in the screenshots is readable.
- If it had been 14 MB, Compress PDF with Strong compression would bring it well under the limit.
Compared with typical online converters
| This tool | Typical online converters | |
|---|---|---|
| Images uploaded | No, processed on your device | Yes |
| Number of images | Unlimited | Often capped per task |
| Paste screenshots from the clipboard | Yes | Rarely |
| PNG kept lossless | Yes | Sometimes re-encoded as JPG |
| Account or watermark | Never | Sometimes |
Screenshots often show private things: messages, bank pages and account numbers. Converting them on your own device means none of that is sent anywhere.
Going the other way
To turn PDF pages back into PNG images, use PDF to PNG. To join this PDF with others, use Merge PDF.