Convert PNG to PDF Online
Convert PNG images to PDF files online — free and without any sign-up.
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PNG images are everywhere in digital work. Screenshots, exported designs from Figma or Sketch, diagrams from documentation tools, charts exported from spreadsheets, and illustrations created in image editors. When you need to compile several of these into a single shareable document, converting them to PDF is the cleanest solution. PDF preserves the image quality exactly, displays consistently on every device, and can be shared with anyone without worrying about whether they have the right software to open it. Dockitt converts PNG images to PDF directly in your browser using pdf-lib.
How to use
- Click 'Choose PNG' and select one or more PNG images you want to combine into a PDF.
- Check that the images are in the correct order before converting.
- Click 'Convert to PDF' to create the document.
- Download the PDF. Each image becomes one page in the document.
FAQ
What is the difference between converting PNG to PDF versus JPG to PDF?
The conversion process is the same, but the source image format differs. PNG images support transparency and use lossless compression, making them ideal for screenshots, designs, and graphics with sharp edges. JPG images are better suited to photographs. Both formats are fully supported for PDF conversion and the resulting PDF will preserve the quality of whichever format you use.
The transparent background in my PNG appears white in the PDF.
PDF pages have a white background by default. When a PNG with a transparent background is embedded into a PDF, the transparency is replaced with white. This is the expected behaviour. If you need the background to be a different colour, edit the PNG to add the desired background colour before converting.
Will the PNG image quality be preserved in the PDF?
Yes. PNG images are embedded into the PDF without any additional compression or quality reduction. The visual output in the PDF will be identical to the original PNG files. Since PNG itself is lossless, there is no quality degradation at any stage of the process.
Can I convert screenshots to PDF using this tool?
Yes. Screenshots saved as PNG are one of the most common use cases for this tool. Whether you are documenting software, compiling a bug report, or creating a visual reference document, you can convert any number of screenshots into a single, well-organised PDF.
The PDF file size is much larger than the original PNG files.
PNG files use lossless compression internally, but when embedded in a PDF the overall file size can increase. After conversion, run the PDF through the Dockitt Compress PDF tool to reduce the size. This is especially effective for screenshots and diagrams that have large areas of solid colour.
Can I reorder the pages in the PDF after converting?
Yes. If the page order is not quite right after conversion, use the Dockitt Reorder PDF Pages tool to drag the pages into the correct sequence. You can also control the order before converting by selecting your PNG files in the order you want them to appear.