PNG to PDF

1. Add your PNG files. Drag screenshots, exports or scanned pages saved as PNG onto the upload box, or pick them from your device. The picker on this page lists PNG files, and any other type is flagged as unsupported. One PDF takes up to 10 images.
2. Put the pages in order. Each PNG becomes one page, from the top of the list to the bottom. The arrows beside a file move it up or down, and the X drops it from the list.
3. Check the layout options. They appear under the list: Page size starts on Fit each image, Orientation on Automatic and Margin (mm) at 0. Leave them for one borderless page per image, or choose A4 or Letter when every page should be a standard paper size.
4. Select Convert to PDF. The images go to private storage first, then our servers build the document while the page counts the images that are finished.
5. Sign in, then download. The result page asks for a free account: Google, or a code we email you, and no password. Then you can preview the PDF and download it, or choose Save to my documents to keep it past the temporary window.

A PNG is one lossless picture, which is why screenshots, interface mockups, charts and logos are so often saved that way. A PDF is a document: it holds many pages at fixed sizes and opens the same way on most devices, which is what forms, ticket systems and print shops tend to ask for.

• Make a PDF when several pictures should travel as one file, such as the steps of a bug report, scanned pages saved as PNG, or receipts for an expense claim. It also gives you pages of consistent size for printing.
• Keep the PNG when you will keep editing it, need a transparent background, or want to drop it into a web page or slide, where a plain image is easier to work with.
• Words in a screenshot stay pixels. The PDF holds the picture, so the text inside it cannot be selected or searched. To get the words out, run the picture through Image to text.
• Photographs are a poor fit for PNG. A photo saved as PNG is large, and a PDF built from it is just as large. If your source is a photograph, make a JPG with PNG to JPG first, then build the PDF from that JPG in Images to PDF, because this page's picker takes PNG files only. A standard JPG goes into the PDF without being compressed again, so you trade some detail for a much smaller file.

• Transparency becomes white. A page cannot be see-through, so transparent areas, and soft edges such as drop shadows, are blended onto white before the image is stored. You cannot pick another background color. Light artwork on a transparent PNG can fade into the white page, so look at a logo or icon on white before you convert.
• Pixels go in untouched. An opaque 8-bit PNG is stored as PNG data inside the PDF, with no lossy compression, so every pixel keeps its value. The cost is size: expect a PDF about as large as your truecolor PNG files added together, and often more than twice as large for indexed-color (256-color) PNGs, which are stored at full color depth. It adds up quickly with photographs.
• Fit each image works at 96 pixels per inch. Any print resolution saved inside the PNG is ignored, so a page follows the picture's pixel dimensions: a 1,920 by 1,080 pixel screenshot becomes a 20 by 11.25 inch page. For a PDF you will print, choose A4 or Letter instead. Those sizes enlarge a small image to fill the page, so a low-resolution screenshot can look soft, and Margin (mm) takes whole numbers from 0 to 50.
• Color depth and profiles. PDF pages here hold 8 bits per color channel, so a 16-bit PNG is reduced to that, and for 16-bit grayscale the result page says so. A PNG with no transparency keeps its embedded color profile. One that has an alpha channel, or that marks a color as transparent, is rebuilt on a plain white canvas that carries no profile, even if nothing in it looks transparent.
• Animated PNG files give one page. Only the first frame is used, and a note on the result page says so.
• Details stored in the file stay out. Text entries such as an author or software tag, and EXIF data such as a camera model, are not copied into the PDF. The one exception is a rotation flag in the EXIF data, which is applied so the page shows the picture upright.
• The PDF is named after your first image. Put screenshot-1.png at the top of the list and the document is called screenshot-1.pdf.
• Limits. One PDF takes up to 10 PNG images totaling no more than 25 MB, and each image can be up to 40 megapixels (its width times its height, in millions of pixels). A free account can run 10 conversions a day, and one PDF counts as one. Pro, at $9.99 a month, includes 500 conversions a month (the free plan has 10 a day) and 25 GB of saved documents; the per-PDF limits stay the same.
• Mixing formats. To combine PNG files with JPG or WebP images in one document, use Images to PDF. It has the same options as this page.