PDF/A and external references
PDF/A ensures reliable long-term rendering by embedding fonts, images, and color profiles, but URLs can still appear in text, hyperlinks, bookmarks, annotations, metadata, and embedded files.
Link annotations and URI Actions define clickable destinations, but PDF/A restricts certain action types to prevent external dependencies.
Guided by clear policies, comprehensive audits of both visible and hidden references help maintain authenticity, accessibility, and long-term integrity of PDF/A documents and digital collections.
PDF/A ensures reliable long-term rendering by embedding fonts, images, and color profiles, but URLs can still appear in text, hyperlinks, bookmarks, annotations, metadata, and embedded files.
Link annotations and URI Actions define clickable destinations, but PDF/A restricts certain action types to prevent external dependencies.
Guided by clear policies, comprehensive audits of both visible and hidden references help maintain authenticity, accessibility, and long-term integrity of PDF/A documents and digital collections.
A Technical and Cultural Assessment of the Mueller Report PDF
It’s too bad that such important historical documents are nonetheless posted as such low-quality PDF files. We provide commentary.
March 2019 by Dietrich von Seggern (callas software GmbH)
There are numerous tools on the market, including freeware, with which users can create PDFs. But are the results of … Read more
March 2019 by Duff Johnson
On February 25, 2019, researchers from Ruhr University Bochum and Hackmanit GmbH published pdf-insecurity.org, a detailed explanation of several vulnerabilities they … Read more
