Do PNG images have a transparent background?

Yes — FlowPDF's PNG conversion preserves the transparency of the PDF page. If a page has a white background, that white appears as white in the PNG. If a page has a transparent background (like a PDF with no background color), the PNG has a transparent background that you can place over any color without a white box. This is a key advantage over JPG, which always has a solid white background. For design work, this transparency is essential.

What resolution are the PNG images?

FlowPDF converts pages at a high resolution suitable for professional use — typically around 150-300 DPI depending on the PDF's native resolution and your instructions. You can request higher resolution by specifying it, like 'convert at 300 DPI.' The goal is to provide images that are crisp enough for both screen display and high-quality printing. The default resolution balances quality and file size for most use cases.

Can I convert only specific pages to PNG instead of the whole document?

Yes — you can specify a page range or individual pages. For example, say 'convert pages 3-6 to PNG' or 'convert page 1 and pages 5-8.' FlowPDF will only generate PNGs for the pages you request, saving you time and storage space. This is especially useful when you only need certain pages from a large document for design purposes.

Does PNG conversion preserve text quality and sharpness better than JPG?

Yes — significantly better. PNG uses lossless compression, so the rendered text and graphics are crisp and artifact-free. JPG's lossy compression introduces blurring and artifacts around sharp edges and text, especially at lower file sizes. If text readability is important — like for a screenshot of a document page or a design asset — PNG is the better choice. If you're converting photo-rich pages and file size is your priority, JPG is usually sufficient.

How does PNG file size compare to JPG for PDF conversion?

PNG files are typically 2-5 times larger than JPG files for the same resolution because PNG uses lossless compression. This is the trade-off: PNG gives you perfect quality and transparency at the cost of file size; JPG gives you small file size at the cost of some quality. For a standard letter-sized PDF page, a PNG might be 2-4 MB while a JPG is 0.5-1 MB at similar visual quality. Choose based on your needs — if you need the images for a website, JPG is usually fine; if you need them for design work, PNG is worth the extra size.

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Convert PDF to PNG Online — Free, High Quality, Transparent Background

PNG is the image format that designers choose when they need quality and transparency. While JPG handles photographs well, it struggles with text, sharp edges, and graphics where you need a transparent background. PNG preserves crisp text, clean lines, and supports a full alpha channel — meaning you can place the page on any background without a white box around it. FlowPDF converts every page of your PDF into a separate PNG image with excellent quality. Each page becomes a PNG file with the page's content rendered at high resolution, with transparent background where the page is blank. This is the go-to format for web design (no ugly white boxes over colored backgrounds), for slides (drop them into a presentation without cropping), and for any scenario where you need a clean, crisp image of a page with no background artifacts. Unlike JPG, PNG is lossless, so text and sharp edges stay perfect. You get all pages as a single zip download, ready to use in your design software, website, or presentation.

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How it works

1
Upload your PDF.
2
Ask FlowPDF to convert it — for example, 'convert to PNG' or 'make PNG images of every page.'
3
FlowPDF renders each page as a high-quality PNG image.
4
Download the zip containing one PNG per page.

Frequently asked questions

This is the most frequent question because both tools convert PDF pages to images, but they serve different purposes. JPG files are smaller because they use lossy compression, making them great for photos and email attachments. PNG files are larger because they use lossless compression and support transparency, making them perfect for web graphics, design assets, and any scenario where you need sharp text and clean edges. Use pdf-to-jpg for quick image exports where file size matters more than pixel-perfect quality. Use pdf-to-png when you need professional-grade images with transparent backgrounds, crisp text, or sharp graphics.