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Convert Images to a PDF

Processed entirely in your browser. Never uploaded to a server.

Drop images here or click to browse

Processed entirely in your browser. Never uploaded to a server.

This tool puts each image on its own PDF page, in the order you select the files. It is the natural reverse of PDF to PNG, which takes a PDF apart into one image per page. Pick a page size, drop your images above, then download the PDF.

The two page-size modes

A4 (the default) puts every image on a uniform A4 page with a half-inch margin, choosing portrait or landscape per image based on which way round the image is. The image is scaled by a single factor so its aspect ratio is preserved exactly, then centred. This is almost always what you want when combining several photos: every page looks and prints the same size. Fit to image instead gives every page the image's own pixel dimensions treated as the page size, so a phone photo (often 3000+ pixels wide) becomes a page many times larger than a small screenshot from the same batch — the pages will look wildly inconsistent in size next to each other. Only use it if you specifically need each page's aspect ratio and resolution preserved exactly, e.g. for further processing rather than reading or printing. Images are never stretched to fill the page in either mode.

How each format is handled

PDF supports JPEG and PNG image data directly, so files in those two formats are embedded as-is, with no re-encoding and no quality loss. Any other format your browser can read, WebP and GIF for example, is decoded and re-encoded to PNG first, then embedded. The PDF holds the same pixels either way, but a converted image can take up more space in the PDF than the original file did on disk. If a file cannot be decoded at all, the tool stops and names the file rather than skipping it silently.

FAQ

Are my images uploaded anywhere?
No. The PDF is built in your browser and handed straight to your downloads. Your images never leave your device.
What order do the pages come out in?
The order you selected the files in, one image per page. If you pick files from a folder, most browsers hand them over in the order the folder is sorted, so sort by name first if the filenames set the order you want.
Will my images be stretched or cropped?
No. Aspect ratio is preserved in both page-size modes. Fit to image gives each page the image's own dimensions, so nothing is scaled at all. A4 scales the whole image by a single factor to fit inside the margins and centres it, which leaves blank space on two sides when the image shape does not match A4.
Which image formats work?
JPEG and PNG are embedded directly, because those are the two formats PDF itself supports. Other formats, WebP for example, are decoded and re-encoded as PNG first, then embedded. That extra step is lossless, but it takes a moment longer per image and can make the PDF larger than the original files.
Does this compress my images?
No. JPEGs are embedded byte for byte, so the PDF is roughly the size of the images that went into it. Run the result through Compress PDF if the file is too large.
Can I turn a PDF back into images?
Yes, PDF to PNG does the reverse. Note that a round trip is not lossless in the other direction: rendering a PDF page to PNG turns text into pixels.
Is there a limit on how many images I can add?
Kit-Bin sets no artificial limit, because nothing is uploaded. The practical limit is your device's memory. Every image is held in memory while the PDF is assembled, so a few hundred large photos may be slow or run out of memory, especially on a phone.

Result larger than you want? Try Compress PDF, or Compress Image on the source images first. To add pages from an existing document afterwards, use Merge PDF.