Dear Authors,

Thank you for submitting the Technical Note on your PDV software toolbox to Climate of the Past. Based on the referee reports, I am happy to accept it for publication subject minor revisions in accordance with the few corrections proposed by the referees. In this connection, please elaborate on the following points.

With respect to your response to point no. 1 raised by Reviewer #1, please clarify whether "a faster method comparable to those provided in Blaauw (2010) or Shakun et al. (2012)" would indeed allow to make use of "classical age models".

Regarding your response to point no. 2 raised by Reviewer #1: Although Microsoft Excel cannot be used on a Linux system, Excel-type spreadsheet files can be imported to and exported from programs such as OpenOffice or LibreOffice. Furthermore I would be surprised if it were much more difficult to compile PDV on a Linux system than on a macOS system. It would certainly be worth a try.

Finally, point no. 4 raised by Reviewer #1 is about the state of PDV in terms of the look of the GUI and zoom factors and not so much about the fonts used in the graphics.

With kind regards,

André Paul

Dear Authors,

Thank you for submitting the Technical Note on your PDV software toolbox to Climate of the Past. Based on the referee reports, I am happy to accept it for publication subject minor revisions in accordance with the few corrections proposed by the referees. In this connection, please elaborate on the following points.

With respect to your response to point no. 1 raised by Reviewer #1, please clarify whether "a faster method comparable to those provided in Blaauw (2010) or Shakun et al. (2012)" would indeed allow to make use of "classical age models".

Regarding your response to point no. 2 raised by Reviewer #1: Although Microsoft Excel cannot be used on a Linux system, Excel-type spreadsheet files can be imported to and exported from programs such as OpenOffice or LibreOffice. Furthermore I would be surprised if it were much more difficult to compile PDV on a Linux system than on a macOS system. It would certainly be worth a try.

Finally, point no. 4 raised by Reviewer #1 is about the state of PDV in terms of the look of the GUI and zoom factors and not so much about the fonts used in the graphics.

With kind regards,

André Paul

Dear Authors,

Thank you for first carefully addressing the suggestions made by the referees and then clarifying the remaining points. I am glad to accept your manuscript to be published "as is".

Yours sincerely,

André Paul