Refactor `PdfResultPackageService` to improve PDF handling:
- Load the main document into `PdfDocumentProcessor`.
- Remove original metadata to attribute the result to `DXApp`.
- Replace report file attachment with appending report pages.
- Use a temporary processor to determine report page count.
- Add logging for appended pages and total page count.
- Update save operation to include detailed logging.
Removed the functionality to attach the report file as a PDF attachment.
Improved overall usability, traceability, and document attribution.
Introduce functionality to remove and replace metadata in the
resulting PDF document. After loading the document with
`PdfDocumentProcessor`, the metadata fields (`Author`, `Creator`,
`Producer`, `Title`, `Subject`, and `Keywords`) are cleared or
replaced with values indicating the document was processed by
the "DXApp" system. This ensures proper attribution and removes
any association with the original document creator.
Introduce functionality to add a stamp to the top-right corner of
the first page of a PDF. The stamp includes a white background,
a green border, and two lines of text: "✔ VERARBEITET" in bold
green font and the current date/time in gray font. The stamp is
drawn using `DevExpress.Pdf.PdfDocumentProcessor` and saved to
the document's foreground.
Changed logging levels from LogInformation to LogDebug in
PdfAttachmentExtractorService and PdfResultPackageService.
This includes logs for PDF conformity levels, ZUGFeRD
Guideline-IDs, saved attachment details, and result report
discovery. These changes aim to reduce log verbosity in
production environments by moving less critical information
to the debug level.
Refactored the PDF processing workflow to enhance error handling
and provide more descriptive exception messages. Added `try-catch`
blocks around the PDF/A-3b conversion and document saving steps
to handle potential failures.
Labeled the workflow steps for clarity:
- Step 1: Convert to PDF/A-3b
- Step 2: Buffer converted PDF
- Step 3: Embed attachment
- Step 4: Save document
Removed redundant `MemoryStream` initialization for the original
PDF and updated comments to improve code readability and
maintainability.
Introduced the `ResultFilePath` property in the `ZugferdInvoice` model to store the path of generated result PDFs. Added a new service, `PdfResultPackageService`, to create result PDFs by converting the original PDF to PDF/A-3b format and attaching a report file. Updated `Upload.cshtml` and `Upload.cshtml.cs` to handle and display the `ResultFilePath`.
Created a migration to add the `ResultFilePath` column to the database. Updated `Program.cs` to register the new service and added configuration sections in `appsettings.json` for input and output directories. Enhanced error handling and logging for better traceability.
