Convert PDF to PDF/A in C#

GdPicture enables converting PDF documents and images to PDF/A format.

Converting PDF to PDF/A

The GdPicturePDF class is a quick and easy one-step operation for converting PDF documents into any of the PDF/A conformance levels.

Here’s the code for conversion:

// We assume GdPicture has been correctly installed and unlocked.
using (GdPicturePDF gdpicturePDF = new GdPicturePDF())
{
    // Loading a PDF document to convert.
    GdPictureStatus status = gdpicturePDF.LoadFromFile("test.pdf", false);
    if (status == GdPictureStatus.OK)
    {
        // Providing the conversion to a PDF/A-1b-conforming document.
        status = gdpicturePDF.ConvertToPDFA("converted.pdf", PdfConversionConformance.PDF_A_1b, true, true);
        if (status == GdPictureStatus.OK)
        {
            MessageBox.Show("The PDF file has been converted successfully.", "Conversion to PDF/A Example", MessageBoxButtons.OK, MessageBoxIcon.Information);
            // Checking the conformance of the converted document.
            using (GdPicturePDF convertedPDF = new GdPicturePDF())
            {
                status = convertedPDF.LoadFromFile("converted.pdf", false);
                if (status == GdPictureStatus.OK)
                {
                    PdfConformance conf = convertedPDF.GetPDFAConformance();
                    MessageBox.Show("The conformance of newly created PDF is: " + conf.ToString(), "Conversion to PDF/A Example", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
                convertedPDF.CloseDocument();
                // You can validate the resulting document using available PDF/A validators.
            }
        }
        else
            MessageBox.Show("The file can't be converted. Status: " + status.ToString(), "Conversion to PDF/A Example", MessageBoxButtons.OK, MessageBoxIcon.Error);
        gdpicturePDF.CloseDocument();
    }
    else
        MessageBox.Show("The file can't be loaded. Status: " + status.ToString(), "Conversion to PDF/A Example", MessageBoxButtons.OK, MessageBoxIcon.Error);
}

'We assume GdPicture has been correctly installed and unlocked.
Using gdpicturePDF As GdPicturePDF = New GdPicturePDF()
    'Loading a PDF document to convert.
    Dim status As GdPictureStatus = gdpicturePDF.LoadFromFile("test.pdf", False)
    If status = GdPictureStatus.OK Then
        'Providing the conversion to a PDF/A-1b-conforming document.
        status = gdpicturePDF.ConvertToPDFA("converted.pdf", PdfConversionConformance.PDF_A_1b, True, True)
        If status = GdPictureStatus.OK Then
            MessageBox.Show("The PDF file has been converted successfully.", "Conversion to PDF/A Example", MessageBoxButtons.OK, MessageBoxIcon.Information)
            'Checking the conformance of the converted document.
            Using convertedPDF As GdPicturePDF = New GdPicturePDF()
                status = convertedPDF.LoadFromFile("converted.pdf", False)
                If status = GdPictureStatus.OK Then
                    Dim conf As PdfConformance = convertedPDF.GetPDFAConformance()
                    MessageBox.Show("The conformance of newly created PDF is: " + conf.ToString(), "Conversion to PDF/A Example", MessageBoxButtons.OK, MessageBoxIcon.Information)
                End If
                convertedPDF.CloseDocument()
                'You can validate the resulting document using available PDF/A validators.
            End Using
        Else
            MessageBox.Show("The file can't be converted. Status: " + status.ToString(), "Conversion to PDF/A Example", MessageBoxButtons.OK, MessageBoxIcon.Error)
        End If
        gdpicturePDF.CloseDocument()
    Else
        MessageBox.Show("The file can't be loaded. Status: " + status.ToString(), "Conversion to PDF/A Example", MessageBoxButtons.OK, MessageBoxIcon.Error)
    End If
End Using

Converting Images to PDF/A

The GdPictureDocumentConverter class is a quick and easy one-step operation for converting [TIFF][tiff-to-pdf], [JPG][jpg-to-pdf], [PNG][png-to-pdf], [SVG][svg-to-pdf], [BMP][bmp-to-pdf], and [50 other image formats][file type support] into any of the PDF/A conformance levels.

Here’s the code for conversion:

// We assume GdPicture has been correctly installed and unlocked.
using (GdPictureDocumentConverter oConverter = new GdPictureDocumentConverter())
{
    // Select your source image and its image format (TIFF, JPG, PNG, SVG, and 50+ more).
    GdPictureStatus status = oConverter.LoadFromFile("input.png", GdPicture14.DocumentFormat.DocumentFormatPNG);
    if (status == GdPictureStatus.OK)
    {
        MessageBox.Show("The file has been loaded successfully.", "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Information);
        // Select the conformance of the resulting PDF document.
        status = oConverter.SaveAsPDF("output.pdf", PdfConformance.PDF_A_1b);
        if (status == GdPictureStatus.OK)
        {
            MessageBox.Show("The file has been saved successfully.", "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }
        else
        {
            MessageBox.Show("The file has failed to save. Status: " + status.ToString(), "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Error);
        }
    }
    else
    {
        MessageBox.Show("The file has failed to load. Status: " + status.ToString(), "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Error);
    }
}

'We assume GdPicture has been correctly installed and unlocked.
Using oConverter As GdPictureDocumentConverter = New GdPictureDocumentConverter()
    'Select your source image and its image format (TIFF, JPG, PNG, SVG, and 50+ more).
    Dim status As GdPictureStatus = oConverter.LoadFromFile("input.png", GdPicture14.DocumentFormat.DocumentFormatPNG)
    If status = GdPictureStatus.OK Then
        MessageBox.Show("The file has been loaded successfully.", "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Information)
        'Select the conformance of the resulting PDF document.
        status = oConverter.SaveAsPDF("output.pdf", PdfConformance.PDF_A_1b)
        If status = GdPictureStatus.OK Then
            MessageBox.Show("The file has been saved successfully.", "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Information)
        Else
            MessageBox.Show("The file has failed to save. Status: " + status.ToString(), "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Error)
        End If
    Else
        MessageBox.Show("The file has failed to load. Status: " + status.ToString(), "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Error)
    End If
End Using

Converting Office Files to PDF/A

The GdPictureDocumentConverter class is a quick and easy one-step operation for converting Word ([DOCX][word-to-pdf] and [DOC][word-to-pdf]), Excel ([XLSX][excel-to-pdf] and [XLS][excel-to-pdf]), and PowerPoint ([PPTX][powerpoint-to-pdf] and [PPT][powerpoint-to-pdf]) files into any of the PDF/A conformance levels.

Here’s the code for conversion:

// We assume GdPicture has been correctly installed and unlocked.
using (GdPictureDocumentConverter oConverter = new GdPictureDocumentConverter())
{
    // Select your source document and its document format (DOCX, DOC, XLSX, XLS, PPTX, PPT).
    GdPictureStatus status = oConverter.LoadFromFile("input.docx", GdPicture14.DocumentFormat.DocumentFormatDOCX);
    if (status == GdPictureStatus.OK)
    {
        MessageBox.Show("The file has been loaded successfully.", "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Information);
        // Select the conformance of the resulting PDF document.
        status = oConverter.SaveAsPDF("output.pdf", PdfConformance.PDF);
        if (status == GdPictureStatus.OK)
        {
            MessageBox.Show("The file has been saved successfully.", "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }
        else
        {
            MessageBox.Show("The file has failed to save. Status: " + status.ToString(), "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Error);
        }
    }
    else
    {
        MessageBox.Show("The file has failed to load. Status: " + status.ToString(), "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Error);
    }
}

'We assume GdPicture has been correctly installed and unlocked.
Using oConverter As GdPictureDocumentConverter = New GdPictureDocumentConverter()
    'Select your source document and its document format (DOCX, DOC, XLSX, XLS, PPTX, PPT).
    Dim status As GdPictureStatus = oConverter.LoadFromFile("input.docx", GdPicture14.DocumentFormat.DocumentFormatDOCX)
    If status = GdPictureStatus.OK Then
        MessageBox.Show("The file has been loaded successfully.", "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Information)
        'Select the conformance of the resulting PDF document.
        status = oConverter.SaveAsPDF("output.pdf", PdfConformance.PDF)
        If status = GdPictureStatus.OK Then
            MessageBox.Show("The file has been saved successfully.", "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Information)
        Else
            MessageBox.Show("The file has failed to save. Status: " + status.ToString(), "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Error)
        End If
    Else
        MessageBox.Show("The file has failed to load. Status: " + status.ToString(), "Conversion to PDF Example", MessageBoxButtons.OK, MessageBoxIcon.Error)
    End If
End Using