Making PDF files usable and accessible
Checklist and summary
- Each PDF file included for download should show the size of the file on the page from which it is downloaded
- A general notification that the file is in PDF format should always be shown by the file download
- The means to download the free reader should always be shown on the page containing the PDF file
- Backwards version compatibility testing should be carried out on all PDF files
- Metadata should be completed when saving any PDF file
- Security features should be incorporated in each file.
- There is virtually no limit to the types of file that can be converted into Adobe Acrobat files. They have proved popular with authors and users alike. However, information in PDF is generally considered inaccessible to web users whose disabilities make it difficult to interact with computer technologies
- PDF files retain all of their formatting, type styles and illustrative images. The PDF files use compression, so large documents can be saved using significantly less space than the original files.
- Nonetheless there can be performance issues with PDFs and those containing graphics should be tested to check their rendering times.