Convert PNG to PDF Free

PNG (Portable Network Graphics) is the format of choice for screenshots, logos, diagrams, and any image where sharp edges and text clarity matter. Unlike JPG, PNG uses lossless compression — every pixel is stored exactly as captured, with no compression artifacts. This makes PNG ideal for images with text, solid colours, or detailed line art.

Converting PNG to PDF is a common need when submitting documents, printing graphics, or archiving digital assets. PDF provides a fixed-layout document that renders identically on every device and printer.

Transparency in PNG to PDF conversion

PNG supports transparent backgrounds, but the PDF format does not support transparency natively. When converting a PNG with a transparent background to PDF, the transparent areas are filled with white. If you need to preserve transparency, consider keeping the file in PNG format, or place the image on a coloured background before converting.

Screenshots and diagrams

PNG is the standard format for screenshots on all operating systems. If you need to submit a screenshot as a document — for a support ticket, a legal record, or a report — converting it to PDF gives you a professional single-file document with a defined page size.

Combining multiple PNGs into one PDF

Upload multiple PNG files at once to combine them into a single multi-page PDF. This is useful when you have a series of screenshots, design mockups, or scanned pages that need to be presented as a single document.

File size considerations

PNG files are larger than JPG files for photographic content because lossless compression is less efficient on complex photographic data. When converting PNG to PDF, images over 3MB are lightly compressed. For screenshots and diagrams with large areas of flat colour, the output PDF is typically compact because these images compress efficiently.