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| Merging of Scans doesn't work properly https://forum.pdfsharp.net/viewtopic.php?f=2&t=4800 |
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| Author: | SvenBunge [ Tue Feb 25, 2025 12:45 pm ] |
| Post subject: | Merging of Scans doesn't work properly |
We try to merge some PDFs of different sources. Some PDFs looks like they has been scanned. The resulting PDF is broken. Env: VB.net with .net Framework 4.8.1 PdfSharp 6.1.1 via NuGet Source: Code: Using outputDocument = New PdfDocument() For docCount = 0 To arListQuellpfadPdf.Count - 1 Using inputDocument As PdfDocument = PdfReader.Open(arListQuellpfadPdf(docCount), PdfDocumentOpenMode.Import) For Each page As PdfPage In inputDocument.Pages outputDocument.AddPage(page) Next End Using Next outputDocument.Save(zielpfadPdf) End Using In the resulting PDF, the pages have a size of 0x0. We interspected the Width and Height values in the Line outputDocument.AddPage(page) and every page has Width and Height set - but they differ slightly during the different sources. Expected We receive a PDF file with all pages of the given files incl. all elements of the given files with the page size of the given files. |
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| Author: | SvenBunge [ Tue Feb 25, 2025 12:49 pm ] | |||
| Post subject: | Re: Merging of Scans doesn't work properly | |||
We try to get a scan that we're allowed to use for sharing. Attached the file info of the source file and the same of the resulting file. (Size is for the full document)
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| Author: | Thomas Hoevel [ Thu Feb 27, 2025 11:55 am ] |
| Post subject: | Re: Merging of Scans doesn't work properly |
There is nothing we can do without the PDF files. If the issue persists with PDFsharp 6.2.0 Preview 3, then please make the files and the code available for investigation. Do the problems persist when you open all PDF files in Adobe Reader and save them using "File / Save as"? Adobe Reader can fix some anomalies of specific PDF files. |
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| Author: | SvenBunge [ Wed Jul 23, 2025 10:58 am ] |
| Post subject: | Re: Merging of Scans doesn't work properly |
The answer was: There where some DLLs of different versions on the path and the binding was not configured well. This causes unpredictable results of some libraries - also PDFsharp. |
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