![]() I am learning Python at the moment and don’t know all the pieces I need to know to make the script. I plan to turn this into a Python script to simplify this into a single step. This string equals: Do OCR (optical character recognition) using Tesseract on file.tiff and output it to a file called OutputFileName.txt in the same folder. Run Tesseract OCR on file.tiff tesseract file.tiff OutputFileName The string equals: use imagemagick to create a 300 dpi image at a color depth of 8 bits from file.pdf into a file named file.tiff in the current folder. Convert PDF convert -density 300 file.pdf -depth 8 file.tiff DetailsĬD into the directory where your PDF is or you will need to add the paths to the following commands. ImageMagick’s convert command will output a 72 dpi file by default. My scanner scans at 300 dpi by default, so I can easily convert the PDF to a 300 dpi image which is enough to get a decent OCR output. Also it needs to be scaled up to sufficient dpi (dots per inch). One is that the file must be an 8 bit color scheme or Tesseract will choke on it. ![]() You have to give it a couple of other parameters. But, it is not as simple as issuing the convert command. You need to take the original PDF and convert it into an image file using ImageMagick. They also have a Windows version of their program. You are still probably retyping any document you need to do something like this on.īesides Tesseract OCR, I am using ImageMagick to do image conversion. But, if you are using Windows, you probably don’t do this geeky kind of stuff. You can probably figure out a way to make most of these tools (or equivalents) work in a Windows environment. The main software I am using to do the heavy lifting is Tesseract OCR. I want to copy the text without having to retype the whole letter. In my case I receive these PDF scans from missionaries’ prayer letters that need to be turned into blog posts or used in newsletters. But if the PDF is created from a scanned document, then the text in the PDF is essentially a picture and not text that can be copied and pasted. You can simply copy and paste the text from the PDF. If a PDF is created from a computer file then the text is embedded as part of the file.
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