PDF/A is specialized for digital preservation and archiving of electronic documents, such as theses, dissertations, and graduate projects. Using PDF/A applies the necessary transformations to existing PDFs, such as embedding fonts, setting color spaces, and a user interface for reading embedded annotations.
There are several different PDF/A formats, including PDF/A-1a and PDF/A-1b. Both are acceptable. PDF/A-1a has stricter compliance conditions, and is harder to convert to from a PDF. As a rule of thumb, if given the option, save to PDF/A-1a from a non-PDF document (such as a Word document). If you are converting from PDF to PDF/A, use the PDF/A-1b format.
Saving to PDF/A in Acrobat X
- Open a PDF file with Acrobat X that you wish to convert to PDF/A.
- Click File / Save As / More Options / PDF/A.
- The Save As Window appears. Name your file and click Settings (not Save).
- The Preflight: Convert to PDF/A window will appear.
- Because you are saving from PDF to PDF/A, select PDF/A-1b.
- Click the Create According to PDF/A Conversion Profile check box.
- Check the Apply Corrections check box.
- Click OK.
- Click OK again to save the file to PDF/A-1b.
Saving to PDF/A in Acrobat 9 Pro
- Open a PDF file that you wish to convert to PDF/A.
- Click File / Save As.
- The Save As Window appears.
- In the Save as Type dropdown menu at the bottom of the window, select PDF/A.
- Click the Settings button.
- The Preflight: Convert to PDF/A Window appears.
- Choose PDF/A-1b.
- Check the Create PDF/A-1b profile check box.
- Check "Apply Corrections" towards the bottom of the window.
- Click OK.
- Click OK again to save to PDF/A-1b.
Saving to PDF/A in Word
By default, Word saves documents in regular PDF format. You can, however, force Word to save in PDF/A format:
- Press F12 to display the Save As dialog box.
- Click on the down arrow next to the Save As Type dropdown menu and choose PDF as your file type.
- Click on the Options button.
- In the Options dialog box, make sure the ISO 19005-1 compliant (PDF/A) check box is selected.
- Click OK to close the Options dialog box.
- Enter a name for the PDF/A file in the File Name field.
- Click Save.
Saving to PDF/A in Word for Mac
Unfortunately, Word for Mac does not include a feature to save as a PDF/A. However, there is a workaround using Adobe Acrobat (if you have it):
- Click File / Print.
- Click and hold the PDF button on the bottom left of the window until a menu appears.
- Select Save as Adobe PDF. A Save as Adobe PDF dialog box will appear.
- From the Adobe PDF Settings dropdown menu, choose PDF/A.
- Click Continue.
- Save the document.
Note: simply clicking PDF in the Print Menu or choosing Save as PDF will create a PDF file, not PDF/A.