The size of all the files combined together in the first image is in relative to a normal folder with all the images inside.
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pdf format and submit your work under such a tight data budget. As previously stated, you cannot expect to maintain the. Below is difference in quality, on the left is the compressed image, and the right uncompressed. Using this option will retain all text sharpness from the original exported text. Note how there are only 5 colors.(page, page line, 2 pen colors, white text) On the left, are the images compressed down with the "save for web" plugin on Gimp.īelow are the options that I used for most of the pages, with the exception of pages with images, where instead the "use web-optimized pallete" option was selected. On the right, are the original, straight from Goodnotes exported jpegs. All images are at the native resoultion of 1668x2154īelow are the results you can expect to see. I thought I would include an example that I create with my own notes, exported to Jpeg directly from Goodnotes 5 (this works regardless of program). These are both options for bringing 1920x1080 images down to about ~<80 KB each with readable text and minimal compression.
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Here is a guide to how to install and use its different options on. If you have GIMP (free and open source <3): You can add an extension that gives you similar functionality to that of Photoshop’s “save for web” function. This will allow you to create an image with minimal compression, at a sharper resolution. I suggest 2 colors for the page (background & lines), and and 3-5 colors for pens (black, red, blue, green, is okay with dithering ). Opening all the images inside Photoshop, use the “ save for web” feature and select the absolute minimum of colors possible. If you have photoshop, export all the files from Notability into an image format and bring them into your desktop to work on. Notability uses a vast amount of vectors in order to keep your handing writing sharp and readable at any size, so we will need to discard that information in favor of a simpler, less sharp jpeg file. You are going to have to sacrifice and switch over to an image format. Lacking any other options, this is the file I'm going to submit, but I'm hopeful there's a better solution.Īssuming your top priority is to minimize file size. It is readable, although visibly compressed, and takes up 1.3 MB. My best result until now was running this 4 MB file through gs -o out.pdf -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dNOPAUSE -dQUIET in.pdf (note ebook instead of printer). that way, which if possible I'd like to retain). I also tried exporting JPEGs from Notability and concatenating them with Preview.app, which produced a 4 MB file size, still unsuitable for me (and also, I lose vector rendering, searching, etc. ImageMagick's convert tool produced output that could be barely classified as readable, even at an alleged 600 DPI.
Ghostscript fared a little better: gs -o out.pdf -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/printer -dNOPAUSE -dQUIET in.pdf reduced the file size to 7 MB, but it's not enough for me. I've already tried exporting a PDF from Preview.app with the "Reduce File Size" filter, which didn't make a difference.
EDIT: online tools are not a possibility, as I can't run the risk of my file being stored and later distributed somehow.
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Otherwise, I'm looking for free tools which would help me reduce the file size. Ideally I'd like to flip a switch inside Notability itself which reduced the export file size, but I don't think anything like that exists. How can I reduce this to fit into my 2 MB budget? Also, I'm pretty sure taking out the figure would make little difference seems like the developers never paid attention to exported file sizes. I need to export one of my notes and upload it to a web site with file size restrictions (unfortunately I don't know the maximum size, but I have reason to believe it is 2 MB).Ī 12-page-long note, consisting only of written text/mathematics and a single grayscale imported figure in one of the pages is taking up 10+ MB, which is frankly outrageous. I use the Notability app for note taking in my iPad.
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