Usage is then straightforward: $ img2pdf img1.png img2.jpg -o out.pdfĭepending on your habits, you type img2pdf in Terminal, you can then select all your PNGs in Finder and just drag&drop them into the Terminal window, add the -oand add the desired name for the output file. If you already have pip installed then a simple pip3 install img2pdf takes care of 'getting it'. You can import a picture from the Photos and Files. This is a free/libre and small python tool with minimal dependencies. Tap the blue plus sign at the bottom to add the file you wish to convert. not be fast because input data gets re-encodedĪnother advantage of not having to re-encode the input (in most common situations) is, that img2pdf is able to handle much larger input than other software, because the raw pixel data never has to be loaded into memory.not be small because using wasteful flate encoding of raw pixel data.not be lossless because lossy re-encoding to JPEG.fast: if possible, the input image is just pasted into the PDF document as-is without any CPU hungry re-encoding of the pixel dataĬonventional conversion software (like ImageMagick) would either:.small: if possible, the difference in filesize between the input image and the output PDF will only be the overhead of the PDF container itself.always lossless: the image embedded in the PDF will always have the exact same color information for every pixel as the input.You should use img2pdf if your priorities are (in this order): Lossless conversion of raster images to PDF. Looking for a specialised tool that fits exactly into the workflow described, avoiding some pitfalls other command line options may present, is

How to convert png to pdf on mac