PDF23: Providing interactive form controls in PDF documents.PDF22: Indicating when user input falls outside the required format or.PDF21: Using List tags for lists in PDF documents.PDF20: Using Adobe Acrobat Pro's Table Editor to repair mistagged tables.PDF19: Specifying the language for a passage or phrase with the Lang entry.PDF18: Specifying the document title using the Title entry in the document.PDF17: Specifying consistent page numbering for PDF documents.PDF16: Setting the default language using the /Lang entry in the document.PDF15: Providing submit buttons with the submit-form action in PDF forms.PDF14: Providing running headers and footers in PDF documents.PDF13: Providing replacement text using the /Alt entry for links in PDF.PDF12: Providing name, role, value information for form fields in PDF documents.PDF11: Providing links and link text using the Link annotation and the /Link structure element in PDF documents.PDF10: Providing labels for interactive form controls in PDF documents.PDF9: Providing headings by marking content with heading tags in PDF documents.PDF8: Providing definitions for abbreviations via an E entry for a structure.PDF7: Performing OCR on a scanned PDF document to provide actual text.
PDF6: Using table elements for table markup in PDF Documents. PDF5: Indicating required form controls in PDF forms. PDF4: Hiding decorative images with the Artifact tag in PDF documents. PDF3: Ensuring correct tab and reading order in PDF documents. PDF2: Creating bookmarks in PDF documents. PDF1: Applying text alternatives to images with the Alt entry in PDF documents. We will try not to leave it a further 8 years before writing another post detailing the remaining ones. Conclusionīetween this post and the previously mentioned Creating accessible links in PDFs post we have covered most of our recommended 10 must-know PDF linking techniques. These should always be manually generated in InDesign, using Hyperlink Destinations. These include InDesign auto-generated tables of content and bookmarks. It should be noted that some links cannot be edited in this way. From the Zoom dropdown select Inherit Zoom. Select Go to a page in the document and click Edit. Double-click the link in question to open the Link Properties dialogue box. Screen magnifier users are likely to get the sharpest looking text in a PDF by resizing the page rather than relying only on the magnifier itself and so will experience some change in page/text sizing when clicking a link with any zoom attribute value other than inherit. However, this does not mean that there is no problem. This is obviously not a very user-friendly thing to do generally, and can be a significant inconvenience for people who need higher levels of page magnification.įortunately, dedicated screen magnifiers such as ZoomText, MAGic and SuperNova all ignore the PDF link zoom attributes (or treat them as if they were set to inherit). If you don’t set your zoom attributes to inherit, when you click an internal link (including table of contents links or bookmarks) the page is likely to shrink, sometimes dramatically so. Acrobat typically generates links with their zoom attributes set to Fit Page, Fit Width or Custom, depending on the page zoom setting at the time the link is created. Unfortunately, this is not the default for links created in Acrobat. Doing so will ensure that the user’s page size or zoom setting will be preserved when the link is clicked. In short, except in a few very rare cases, all internal links in PDFs should have their zoom attributes set to Inherit. 
Setting internal link zoom settings to inherit This post looks at one further aspect of accessible PDF links that document authors should pay attention to, namely link zoom settings. Our blog post Creating accessible links in PDFs describes several of these techniques in detail. In our Accessible PDFs from Acrobat training course we set out 10 must-know PDF accessibility linking techniques. 26 March 2018 | Ted Page Further essential PDF linking techniques
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