Aspose.Words save Word document as pdf loses formatting - asp.net-core

Question

I am using Aspose.Words for .NET to replace some merge fields in my document and then save the file as a PDF, however, my formatting is getting messed up (even for non-merge fields) by the conversion to PDF (refer to the images). The code is quite simple so I don't see what I'm missing.
The word document, pre-processing:
The generated pdf:
As you can see some of the fields are indented a bit more instead of being nicely aligned.
My code for generating the PDF and replacing the merge fields is:
public async Task<Stream> GenerateContractAsync(string requestRegistrationId)
{
var requestRegistration = await _requestRegistrationRepository
.FindRequestRegistration(requestRegistrationId)
.Include(rr => rr.Request.QualityType)
.Include(rr => rr.User)
.SingleOrDefaultAsync();
var file = await _fileService
.LoadFileAsync("Concept contract.docx");
var user = requestRegistration.User;
var document = new Aspose.Words.Document(file);
document.MailMerge.Execute(
new[]
{
"EmployeeName", "EmployeeDateOfBirth", "EmployeePlaceOfBirth", "EmployeeSSN", "EmployeeCity",
"EmployeeAddress", "ContractStartDate", "EmployeeFunction", "HourlyWage", "WageDeductionApplied"
},
new object[]
{
user.FullName, $"{user.Birthday:dd-MM-yyyy}", "Oss", user.Bsn, user.City,
$"{user.PostalCode}, {user.City}", $"{requestRegistration.Request.StartDate:dd-MM-yyyy}",
requestRegistration.Request.QualityType.Name, $"{requestRegistration.Request.HourlyRate:C}",
user.PayrollTaxDiscountEnabled ? "Ja" : "Nee"
}
);
var mergedDocumentStream = new MemoryStream();
document.Save(mergedDocumentStream, SaveFormat.Pdf);
#if DEBUG
mergedDocumentStream.Seek(0, SeekOrigin.Begin);
await _fileService.SaveFileToDiskAsync($"{user.Id}-{DateTimeOffset.Now:g}.pdf", "", mergedDocumentStream);
#endif
mergedDocumentStream.Seek(0, SeekOrigin.Begin);
return mergedDocumentStream;
}
Any help would be greatly appreciated.

Answer 1

The problem occurs because of missing fonts. Please refer to the following article for details.
How Aspose.Words Uses True Type Fonts
In your case, you need to install 'Verdana', 'Arial' and 'Cambria' fonts on the machine where you are executing this Aspose.Words' code. Simply copying these font files from Windows machine to other MAC machine should work.
I work with Aspose as Developer Evangelist.