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18 Apr 2019 ... Do you have a PDF document, but the text isn't searchable? ... free options that pop up in a Google search for “ OCR PDF on Mac ” but be careful ... The computeWidth method is chock-full of Quartz 2D API calls We first call CGFontCreateWithFontName and hand it a Quartz string (known as a CFStringRef) that represents the name of the font we want to use Luckily, CFStringRef and NSString use the same data structure Casting from one to the next is a free operation The API function gives us a CGFontRef data structure As with CGImageRef, this is a C structure and cannot receive Objective-C messages We first check to see the CGFontRef (fref) is nonzero This means we have a valid pointer, and Quartz was able to find the font for us If not, we just print an error If the font can t be found, the app can t really do anything, so it should exit gracefully In this case, we just do nothing and print something to the console for debugging. tesseract ocr pdf javascript: How to apply OCR to scanned PDFs on Mac - 9to5Mac mac ocr pdf to excel 3 Solutions to OCR PDF on Mac (Total 7 Methods) - Cisdem
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10 May 2019 ... And it seems to many users, Enolsoft PDF Converter with OCR is a good choice. It is a Mac PDF tool designed to make PDF searchable in PDF ... Assuming that our font reference fref is valid, we call CGFontGetFontBBox, which returns a bounding box that is big enough any character in the font While some characters are clearly smaller than others (think a period versus a capital W), the bounding box is still useful for determining the maximum height of our string But there s still a problem The CGFont class works in glyph units We don t care what they are; we just need to convert them to device units We do that by first calling CGFontGetUnitsPerEm, which tells us how many of those glyph units are equal to one point Remember our pointSize The next line computes the height, multiplying pointSize times the size of a single point in the given font Calculating width is more involved We actually need to draw the font on the screen invisibly and watch as Quartz advances its hand. online ocr paste image: Dec 19, 2017 · Online OCR services are very useful if you are planning to extract text from ... then select language ... pdf ocr mac freeware How to apply OCR to scanned PDFs on Mac - 9to5Mac
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