/// <summary> Extracts a thumbnail image from a PDF file </summary>
/// <param name="Resource"> Incoming digital resource object </param>
/// <returns> TRUE if processing can continue, FALSE if a critical error occurred which should stop all processing </returns>
public override bool DoWork(Incoming_Digital_Resource Resource)
{
string resourceFolder = Resource.Resource_Folder;
// Get the executable path/file for ghostscript and imagemagick
string ghostscript_executable = MultiInstance_Builder_Settings.Ghostscript_Executable;
string imagemagick_executable = MultiInstance_Builder_Settings.ImageMagick_Executable;
// Preprocess each PDF
string[] pdfs = Directory.GetFiles(resourceFolder, "*.pdf");
foreach (string thisPdf in pdfs)
{
// Get the fileinfo and the name
FileInfo thisPdfInfo = new FileInfo(thisPdf);
string fileName = thisPdfInfo.Name.Replace(thisPdfInfo.Extension, "");
// Does the thumbnail exist for this item?
if ((!String.IsNullOrEmpty(ghostscript_executable)) && (!String.IsNullOrEmpty(imagemagick_executable)))
{
if (!File.Exists(resourceFolder + "\\" + fileName + "thm.jpg"))
{
PDF_Tools.Create_Thumbnail(resourceFolder, thisPdf, resourceFolder + "\\" + fileName + "thm.jpg", ghostscript_executable, imagemagick_executable);
}
}
}
return(true);
}
private void _GenerarComPDFmand()
{
path = DependencyService.Get <IPathService>().GetDataBasePath("MiPDF.pdf");
PDF_Tools.CreateNewPDF(path);
Debug.WriteLine(path);
}
/// <summary> Gets the page count from a PDF file, for statiscal reporting </summary>
/// <param name="Resource"> Incoming digital resource object </param>
/// <returns> TRUE if processing can continue, FALSE if a critical error occurred which should stop all processing </returns>
public override bool DoWork(Incoming_Digital_Resource Resource)
{
// If there are no pages, look for a PDF we can use to get a page count
if (Resource.Metadata.Divisions.Physical_Tree.Pages_PreOrder.Count <= 0)
{
string[] pdf_files = Directory.GetFiles(Resource.Resource_Folder, "*.pdf");
if (pdf_files.Length > 0)
{
int pdf_page_count = PDF_Tools.Page_Count(pdf_files[0]);
if (pdf_page_count > 0)
{
Resource.Metadata.Divisions.Page_Count = pdf_page_count;
}
}
}
return(true);
}
/// <summary> Extracts indexable text from a PDF file </summary>
/// <param name="Resource"> Incoming digital resource object </param>
/// <returns> TRUE if processing can continue, FALSE if a critical error occurred which should stop all processing </returns>
public override bool DoWork(Incoming_Digital_Resource Resource)
{
string resourceFolder = Resource.Resource_Folder;
// Preprocess each PDF
string[] pdfs = Directory.GetFiles(resourceFolder, "*.pdf");
foreach (string thisPdf in pdfs)
{
// Get the fileinfo and the name
FileInfo thisPdfInfo = new FileInfo(thisPdf);
string fileName = thisPdfInfo.Name.Replace(thisPdfInfo.Extension, "");
// Does the full text exist for this item?
if (!File.Exists(resourceFolder + "\\" + fileName + "_pdf.txt"))
{
PDF_Tools.Extract_Text(thisPdf, resourceFolder + "\\" + fileName + "_pdf.txt");
}
}
return(true);
}
