![]() Scan the document using as high a resolution as possible to improve That actual text is stored in the document, perform the following steps: This example uses a simple one-page scanned image of text. See the list of other software tools in PDF Authoring Tools that Provide Accessibility Support. There are other software tools that perform similar functions. This example is shown with Adobe Acrobat Pro. Examples Example 1: Generating actual text rather than images of text using Adobe Acrobat Pro can then be used to create accessible Scanned images of text can be converted to PDF using optical character If authors do not have access to the source file and authoring tool, Office to author and convert content to PDF. Of text, using an authoring tool such as Microsoft Word or Oracle Open Select, edit, resize, or reflow text nor can they change text and backgroundĬolors and authors cannot manipulate the PDF for accessibility.įor these reasons, authors should use actual text rather than images Visual presentation interfering with its readability.Ī document that consists of scanned images of text is inherently inaccessibleīecause the content of the document is images, not searchable text.Īssistive technologies cannot read or extract the words users cannot Is presented in such a manner that it can be perceived without its How to set-up a workflow using Action Wizard.The intent of this technique is to ensure that visually rendered text We can now apply these steps to any folder and Acrobat will OCR each file and save two versions: one PDF and one Text file. Choose ‘Specify Settings’ and change ‘Output Format’ to ‘Export File(s) to Alternative Format’ and select ‘Text (Plain)’ form the ‘Export to:’ drop-down list.Under ‘Save & Export’, add ‘Save’ twice.From ‘Recognize Text’, add ‘Recognize Text using OCR’.This is the folder where your PDFs to recognize are saved. Under ‘Files to be processed, choose the ‘Acrobat’ folder.There are several settings to change to complete our worflow.We can save these workflows and apply them to multiple PDFs or entire folders of PDFs. Bulk processing Using the ‘Action Wizard’Īdobe provides a way to create workflows through the Action Wizard. It’s important to remember that 100% accuracy with OCR software is nearly impossible. These were not identified by Acrobat as potenital issues. You’ll notice in our example PDF there are several words which are incorretly recognized. Now we can edit the text for each word, not just the words that Acrobat identified as potential errors.This option will show us the hidden text layer on top of the image of the text.While the ‘Correct recognized text’ option is open, check the box for ‘Review recognized text’.We can view the hidden text layer in Acrobat as an additional means of quality control. While invisiable to us, this text layer allows us to copy/paste and search the recognized text. Selct ‘Apply’ and move to the next potential error.Īfter we OCR any PDF, we create a hidden text layer.Each word with a low confidence rating will appear in a red box.We can manually verify and edit any OCR text. It will highlight words with when it’s confidence in the accuracy of the OCR is low. Click the blue ‘Recognize Text’ button to begin OCR.Īcrobat cannot be 100% accurate with it’s OCR. ![]() Change ‘Settings’ and ‘language’ if necessary.Select ‘Scan & OCR’ from the ‘Tools’ menu.Use your Yale crendaentials (NetID & password). If this is your first time using Acrobat, you will be asked to sign-in to your account.Select ‘Open with’ and choose Adobe Acrobat.In the sample data, go to the ‘Acrobat’ folder and open ‘CeremonialMagic_1.pdf’ in Adobe Acrobat.It’s also free for all current Yale students, faculty, and staff. It works best for good quality PDFs (we’ll use ABBYY on our ugly PDFs). Understand how to OCR a document in AcrobatĪdobe Acrobat is a great entry-level tool for OCR.
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