Office documents are currently printed on the PDF printer in order to convert the file to PDF. Via this interface, all the metadata such as Hyperlinks are lost. We have two option on our TODO list which targets this issue and we work on that. For know, you can try our Online PDF Converter, here we do not print and here we can keep the hyperlinks.
I was thinking that if I used the installed PDF24 Creator with the option to only relocate pdf pages (without any compression) that hyperlinks would stay. But equally as connected form fields are renamed (date -> date_1), hyperlinks also disappear.
Are there any settings I could use to prevent that?
yes, this has changed: since version 11.8.0, PDF24 no longer prints Word, Excel and PowerPoint files when converting them, but lets Office export the PDF itself. Hyperlinks are kept this way. To do this, drag the Office file into PDF24 Creator or use "Convert to PDF" in the PDF24 Toolbox. Printing from Word to the PDF24 printer still loses the links, because the printer interface does not pass them on.
When you delete or rearrange pages in PDF24 Creator, web links on the pages are kept. If your PDF was created by printing, it has no links to begin with. If links disappear in a PDF that has them, please send us such a file with this button:
Form fields: with the next version, forms stay fillable when you delete or rearrange pages in PDF24 Creator. Fields are only renamed if fields with the same name come from different files.