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Archive for August 30, 2010

Extract file preview stored in Adobe XMP data

Some of Adobe file format’s (INDD, PDF, AI) are using Metadata to store low-res preview of file inside file itself. For example InDesign allows you to select how many pages do you want to include in these previews and also preview size/quality. We have to keep in mind that data is not stored in binary format. It’s stored in, so called, Base64 encoding scheme, that represent binary data in an ASCII string format. So, in addition to extracting data we have to decode it to binary, and then save it to file. So, let’s get started! 🙂

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