Compare two PDF files using .NET

GroupDocs.Comparison Product Family
1

Hello,

we have just received your temporary license.
The license seems be valid.
grafik.png (5.7 KB)
Now, we try to compare two PDF files.

The variables “fileOne” and “fileTow” are paths to a PDF file.

The variable “filename” is a generated path. (the path exists, the pdf doesn’t exists.)
grafik.png (4.4 KB)
After running the above code, a PFD file is created (variable “fileName”) This file can be opened with adobe Reader, but we see a single empty page.

We have tried some different PDF files, but the result is always an empty page.
What are we doing wrong?
grafik.png (5.68 KB)
grafik.png (4.36 KB)

2

@rkoh,

Can you please tell API version (e.g. 19.9, 19.10) that you are evaluating?

3

Hello,

i use the NuGet package “v19.10.0”.

1 Like
4

@rkoh,

We are not able to reproduce this issue. Please see these files.zip (248.6 KB). A proper output is generated.
However, in order to further investigate this we need a simple console based application from you using that issue could be reproduced. Please don’t attach license and DLL files in the project.

5

Hello,

We have created a new console application for testing and now, it works.
We found that the other applications “target framework” is “.net core 3.0” - that doesn’t work.
Sorry for your trouble.

An other thing we noticed are the Settings.
There are the “old” “ComparisonSettings” with a lot of settings. The new “ComparerSettings” has only the “Logger” settings.

How can we take some settings like “GenerateSummaryPage” or " “DetailLevel” within the new “Comparer”?

1 Like
6

@rkoh,

Its quite simple. Following code will help you:

CompareOptions options = new CompareOptions();
options.GenerateSummaryPage = false;
options.DetalisationLevel = DetalisationLevel.High;
using (Comparer comparer = new Comparer(@"D:\Samples\source.pdf"))
{
        comparer.Add(@"D:\Samples\target.pdf");
        comparer.Compare(@"D:\Samples\Output\output.pdf",options);
}

For further details, please visit documentation.

7

Thanks for your Help!

1 Like
8

@rkoh,

You are welcome.