One such freeware that utilizes Tesseract is OCRmyPDF, downloadable from Github. Theres also a number of OCR applications, free and paid. One caveat with this feature is that it will make the file sizes larger, which is usually not desirable. What you need to convert a picture of text to actual text is OCR. You can save the output as either a monochrome image, or a color image depending on your needs. This will save all text in the document being printed as an image, so that it can’t be searched or indexed by search engines. Whatever the reason, the easiest way to create non-searchable PDF files is to use the PDF Image Only file save option with Win2PDF. That is, making it very difficult to search through the documents. Open the Registry Editor: Go to Run (Windows menu + R), type regedit.exe in the Open field, and then click OK. Quit Acrobat or Acrobat Reader if its already running. Update your Acrobat and Acrobat Reader to 21.001.20142 or higher version, and then try the steps below. There are also situations where lawyers litigating cases need to share documents with the opposing side, and they have an interest in dumbing down the PDF file. Solution 2: Enable the PDF index using bFallbackOnix32 registry key. We posted an example some time ago where some sensitive documents were redacted in the PDF, and even though they displayed correctly (where the text appeared blacked-out), the actual text in the PDF file was searchable and selectable. However, some people want to create PDF files that are NOT searchable for a variety of reasons. The text can be searched from PDF viewers like Adobe Reader, can be cut & pasted into other documents, and it can also be indexed and searched by search engines like Google or Bing. This can include images with handwritten notes, circled text, and other notations, which are done to document prior to scanning sometimes.When you create a PDF file from most applications, the result is a PDF that contains both text and images. Find and select the document you want to make searchable, then. Noise – speckles, streaks, watermarks, stamps, and other marks that are not part of the text can interfere with OCR. Make a PDF searchable with Adobe Acrobat. Language: texts published before 1850 may not be the most compatible with OCR software.The word or phrase should become highlighted. Type a word or phrase you know to be in the document. If you have pdf of type image, you will have to. Use the keyboard shortcut Ctrl+F to open the Find menu. if you want to search by content of pdf,you have to be sure that pdf content is type text and no type image. Handwritten documents cannot be easily read by OCR software. Finally, search for text in your PDF to check that the process has worked successfully. OCR works best with good quality typed documents.OCR may not convert characters with very large or very small font sizes.Skewed pages can lead to inaccurate recognition. Straightness of the initial scan can affect OCR quality.Brightness that is too high or low can negatively affect accuracy. A medium brightness of 50% is suitable for most scans.JPEGs will lose quality with each edit and save. PDF, TIFF and PNG are recommended for uncompressed file formats. You can also upload images with text as well. If your document has color images then you should scan in color mode. How to create searchable PDFs using OCR Upload PDF created from Scanned documents to the PDF4me OCR tool.
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