convert to pdf tiff file

Hello
I try to convert tiff file to pdf with

pdftron.PDF.Convert.ToPdf(pdfdoc, path);

And I get an error

<<<<<<<<<<<<<

Exception: \n\t Message: An error occurred while converting the file.\nDetailed error:\n\tUnknown

color space encountered\n\n\t Conditional expression: false\n\t Filename

: Convert.cpp\n\t Function : trn::PDF::Convert::ToPdf\n\t Linenumber : 1744\n"}

<<<<<<<<<<<<

What is this?

Wait to quick answer

Thank you

Tehila

It appears you are running an old version of the SDK, please try with the latest version.
https://www.pdftron.com/documentation/guides/download

Hi Ryan

Thank you for quick answer,

But

I try to changed the version PDFNet.dll to 1.10 but I get an error

{“Exception: \n\t Message: Your license does not include write permission.\n\t Conditional expression: \n\t Version : 6.10.0.69952\n\t Filename : \n\t Function : PDFNet Licensing\n\t Linenumber : 0\n”}

Witch Version I can used in my Project with my license

I get the license at 22 August 2018 and where I can download it

Thank you

Tehila Hurwitz

בתאריך יום שלישי, 5 בנובמבר 2019 בשעה 03:03:18 UTC+2, מאת Ryan:

It appears you are running an old version of the SDK, please try with the latest version.
https://www.pdftron.com/documentation/guides/download

It sounds like you are using an old license key, that will not work with newer versions of our SDK.

You would need to use the newest license key you got from us, or if your Annual Maintenance Subscription (AMS) has expired, to renew that.

Please contact the support team directly, using the link below, and include the string your are currently passing into PDFNet.Initialize() and we can assist further privately (not in this forum).
https://www.pdftron.com/form/request