How To Convert PST To PDF With Attachments
There are multiple third-party tools available on the internet, you just need to find the right solution. I have used PST to PDF Converter tool when I required the same issue and got accurate results. This is the download link of the software, download from here PST to PDF Converter.
for more information https://www.osttopstapp.com/pst-to-pdf.html

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chris white commented
I have used this PST to PDF Converter Software at the suggestion of my friend. You may use this application for an effortless and secure way of the move of PST files into PDF. The utility can also migrate PST files to multiple file formats. It allows the users to import selected data items from the PST file into PDF Format.
More Info:- https://www.pcinfotools.com/pst-to-pdf-converter/
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Tangocharlie commented
Are you trying to convert your PST files into PDF format and want the best application for this task, if yes then much application available in the market but I used PST to PDF converter application which is a very brilliant and effective application that can simply convert your multiple as well as single PST files. With this application, all users can simply convert their PST files into PDF without any hassle. Moreover, all users both technical and non-technical can simply use this application without any technical support. Visit here for more data:-https://www.wholeclear.com/pst/pdf/