Various tax return forms or other accounting papers can be either print on paper or exported as PDF documents. Usually found as special PDF export function in tax accounting program. For .tt15 files, you will need to use TurboTax that uses this type of tax return forms.
Convert TurboTax 2015 tax return to Adobe Portable document format.
We have found 2 software records in our database eligible for .tt15 to .pdf file format conversion.
Microsoft Windows software - convert tt15 to pdf on Windows
A tax preparation software developed by Intuit
Convert from tt15 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 tt15 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 tt15 to pdf on OS X
Popular tax preparation software