At Home accounting program can probably export its own tax forms (for example .t13 files) as PDF documents. Perhaps you may also be able to find a dedicated PDF export function in one of the program menus, or simply print it as PDF using the virtual PDF printer.
Convert H&R Block Tax Software tax return file to Adobe Portable document format.
We found 2 software records in the database related to .t13 to .pdf file format conversion.
Microsoft Windows software - convert t13 to pdf on Windows
A popular tax preparation software from HRB Digital
Convert from t13 file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned t13 to pdf. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software - convert t13 to pdf on OS X
A complete a simple federal tax return software