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Look into what OpenLibrary is using. I don't remember it off the top of my head, but there is a special image format for efficiently compressing scanned pages o
by IfOnlyYouKnew 7y ago
Look into what OpenLibrary is using. I don't remember it off the top of my head, but there is a special image format for efficiently compressing scanned pages of text. Their files are vastly smaller than jpeg at the same quality.
- tasty_freeze 7y agoI downloaded one PDF and looked at its properties. It says it was created with LuraDocument PDF v2.28. Googling, it is a product of LuraTech Imaging GmbH. Following that search leads to a link that redirected to Foxit. They have an enterprise PDF compression toolkit which clearly supports all the advanced compression schemes of PDF, but it is too rich for me: prices are not given, just a button to ask for a quote. There is a personal PDF tool for $129 but they don't make clear if it also supports their top quality PDF compression.