A prerequisite for the long-term availability of PDF files is the adherence to the technical requirements of long-term archiving. The SLUB does not guarantee long-term availability if these technical standards are not met. Archiveable PDF formats are:
- PDF/A-1a and PDF/A-1b for long-term availability based on the PDF specification
PDF 1.4 (ISO 19005-1, Cor.1: 2007, Cor.2: 2011)
- PDF/A-2a and PDF/A-2b for long-term availability based on the PDF specification PDF 1.7 (ISO 19005-2:2011)
PDF/A-1b and PDF/A-2b (Level B, "Basic") offer clear visual reproducibility and therefore represent the minimum requirement for an archiveable document.
PDF/A-1a and PDF/A-2a (Level A, "Accessible") offer both clear visual reproducibility and the ability to map text according to Unicode and the structuring of the document's content (ISO 19005-1).
- You do not know much about PDF/A yet?
You can find an overview here:
Introductory information on the PDF/A-Standard
- Would you like to create a PDF/A compliant file?
Here you will find practical guides for Word, LaTeX, InDesign, etc.:
Instructions for creating PDF/A compliant files
- Are you having problems creating PDF/A compliant files?
Here are some common causes of error messages when validating with the Preflight tool in Adobe Acrobat Professional:
Explanation of common error messages
We offer a PDF/A validator that can check your files before they are sent:
This validator checks if your file is compliant with the SLUB's requirements for PDF/A files. Specific requirements from other institutions may not be taken into account.
We recommend that you regularly validate the PDF files throughout the writing process. Errors are then noticed early on and can be directly resolved.