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"Evaluation only" message with purchased license for 22.6.0+

Hello. We are using GroupDocs.Conversion library with a purchased license. Version 22.5.0 is working fine, but after upgrading to 22.6.0 or 22.7.0 we are getting “Evaluation only” at the top left corner only for some types of conversion. For example any-to-PDF is working fine, but any-to-image renders “Evaluation only” warning. It is reproducible only in Linux(docker image).

Our dockerfile can be found in another support thread HTML to PDF conversion issue

Are there any breaking changes in 22.6.0+ that might cause such behavior? Thanks.

photo_2022-07-14_23-16-57.jpg (10.9 KB)

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@IhorC

Could you please share the license file as well? Please share it in a private message. Take a look at this screenshot.png (15.4 KB). Click on my profile and you’ll see a message button there.


Attaching our license as requested.

@IhorC

We are investigating this issue. Your investigation ticket ID is CONVERSIONNET-5415.

@IhorC

Dockerfile.7z archive that you shared doesn’t contain the sample project. Please share a complete sample project in order to be able to build image and to track the issue.
We’d appreciate if you could also share a screencast/video of explaining the steps to reproduce the issue.

Attached minimal sample project with a couple of existing issues. It’s an ASP.NET Core solution with a few endpoints. Run Docker image and bind internal port 80 to host’s 5000 for example. Swagger will be available at http://localhost:5000/swagger/index.html

GET /GroupDocsIssues/license-issue will convert hardcoded PDF to PNG with a license “Evaluation only” issue. As mentioned above, downgrading to GroupDocs.Conversion 22.5.0 will fix the issue. Also, at the same resulting PNG you will see an issue with a black layer from here PDF to PNG conversion issue in .NET CONVERSIONNET-4742 which is still not fixed and is related to a complex scanned PDF document structure.

GET /GroupDocsIssues/fonts-issue will convert DOCX to PDF with bullets list issue - they will be converted to squares. Bullets list was created by default Word functionality. There is no existing CONVERSIONNET issue for this one.

GET /GroupDocsIssues/empty-image-conversion-1 will try convert PDF to PNG but will crash the service with an error “** (process:1): WARNING **: 22:32:37.373: Path conversion requested 780624 bytes (1152 x 5421). Maximum size is 262144 bytes.”. Repeating issue from here PDF to PNG conversion in .NET on Linux

GroupDocsIssues.7z (1.3 MB)

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@IhorC

Thanks for the details. We’ll further investigate these issues.

You mentioned that updating libgdiplus to the version fixed the issue.

@IhorC

This issue is resolved in API version 22.8. However, we are still investigating other issues.

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Correct, updating libgdiplus fixed most occurrences of " Path conversion requested X bytes" error but not all of them as you can see from a provided example solution.

Thanks for 22.8, will update our services to this version.

@IhorC

We are investigating other issues as well.

@IhorC

As far as “DOCX to PDF with bullets list” issue is concerned, the problem there is missing Windgings and Symbol fonts used for the bullets. They are not included in the ttf-mscorefonts fonts package installed in Docker image. You have to install them. Possible way to install them is adding:

RUN apt-get install -y curl \
    && apt-get install -y fontconfig
RUN wget -q -O - https://gist.githubusercontent.com/Blastoise/d959d3196fb3937b36969013d96740e0/raw/429d8882b7c34e5dbd7b9cbc9d0079de5bd9e3aa/otherFonts.sh | bash

in the Dockerfile.

Thanks. This fixed an issue. We were trying to use OpenSymbol font as a substitute for Symbol font on Linux but it didn’t work.

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@IhorC

Good to know that the issue is fixed.