Before sending your email message or sharing your document or spreadsheet, run the Accessibility Checker to make sure your Microsoft Office content is easy for people of all abilities to read and edit.
PDF/A is an ISO-standardized version of the Portable Document Format (PDF) specialized for the digital preservation of electronic documents. PDF/A differs from PDF by omitting features ill-suited to long-term archiving. Library recommends ISO-standardized versions PDF/A-1a, PDF/A-1b & PDF/A-2.
Aalto University archive instructions for publication submission
WebAIM: Defining PDF accessibility
Adobe® InDesign® CC software supports accessible cross-media publication, allowing you to export InDesign documents to ePub, HTML, or accessible PDF. Reduce the time it takes to create PDF documents that people with disabilities can use more effectively. Apply accessibility features within your InDesign document, rather than having to make major changes in Adobe Acrobat® software. PDF tags, alt tags, and the content order you assign stay with the document as you revise it.