This check determines whether the primary text language for the PDF is specified. Setting the document language in a PDF enables some screen readers to switch to the appropriate language. For more information, see Edit document structure with the Content and Tags panel. To display the Tags panel, choose View > Show/Hide > Navigation Panes > Tags. Open the Tags panel and create the tags tree manually.For more information, see Reading Order tool overview. Choose Tools > Accessibility > Reading Order in Acrobat, and create the tags tree.The report lists potential problems by page, provides a navigational link to each problem, and provides suggestions for fixing them. The Add Tags Report appears in the navigation pane if there are any issues. Choose Tools > Accessibility > Autotag Document in Acrobat.Enable tagging in the application in which the PDF was authored, and re-create the PDF.To specify tags manually, do one of the following: Acrobat automatically adds tags to the PDF. To fix this item automatically, select Tagged PDF on the Accessibility Checker panel, and then choose Fix from the Options menu. If this rule check fails, the document isn't tagged to specify the correct reading order. Additional checks in the Preflight tool.Analyzing documents with the Preflight tool.Automating document analysis with droplets or preflight actions.Correcting problem areas with the Preflight tool.Viewing preflight results, objects, and resources.PDF/X-, PDF/A-, and PDF/E-compliant files.Playing video, audio, and multimedia formats in PDFs.Add audio, video, and interactive objects to PDFs.Edit document structure with the Content and Tags panels.Reading PDFs with reflow and accessibility features.Capture your signature on mobile and use it everywhere.Overview of security in Acrobat and PDFs.Securing PDFs with Adobe Experience Manager.
Add headers, footers, and Bates numbering to PDFs.Send PDF forms to recipients using email or an internal server.
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