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Página principal>Developer Solutions>Examples>Delphi>PDF Documents to JPEG

Converting PDF Documents to JPEG


//////////////////////////////////////////////////////////////////////////////////////////////////// // This example was designed for using in Delphi 7 or higher. // // 1. Adobe Acrobat Writer 4.0 or above should be installed and activated on your PC. // Adobe Acrobat Reader does not have COM interface and cannot be used as COM-server! // // 2. Universal Document Converter 5.2 or above should be installed, too. // // 3. Add "Universal Document Converter Type Library" and "Adobe Acrobat XX.0 Type Library" type libraries to the project. // XX is the Adobe Acrobat version installed on your computer. // // Delphi 7: // Use the Project | Import Type Library menu. // Delphi 2006 or latter: // Use the Component | Import Component menu. // // Clear the "Generate Component Wrapper" checkbox and click the "Create Unit" button (Delphi 7) or // select the "Create Unit" option (Delphi 2006 or latter). // //////////////////////////////////////////////////////////////////////////////////////////////////// program PDFToJPEG; {$APPTYPE CONSOLE} uses SysUtils, Variants, Windows, Dialogs, ActiveX, ComObj, UDC_TLB, Acrobat_TLB; procedure PrintPDFtoJPEG(PDFFilePath: string); var objUDC: IUDC; Printer: IUDCPrinter; Profile: IProfile; AcroApp: Variant; AVDoc: Variant; PDDoc: Variant; nPages: Integer; nPSLevel, bBinaryOk, bShrinkToFit, bNoSave: Integer; begin //Create a UDC object and get its interfaces objUDC := CoAPIWrapper.Create; Printer := objUDC.get_Printers('Universal Document Converter'); Profile := Printer.Profile; //Adobe Acrobat API allow to print only on the default printer objUDC.DefaultPrinter := 'Universal Document Converter'; //Use Universal Document Converter API to change settings of converterd document //Load profile located in folder "%APPDATA%\UDC Profiles". //Value of %APPDATA% variable should be received using Windows API's SHGetSpecialFolderPath //or JCL's JclSysInfo.GetAppdataFolder function. //Or you can move default profiles into a folder you prefer. Profile.Load('PDF to JPEG.xml'); Profile.OutputLocation.Mode := LM_PREDEFINED; Profile.OutputLocation.FolderPath := 'c:\UDC Output Files'; Profile.PostProcessing.Mode := PP_OPEN_FOLDER; AcroApp := CreateOleObject('AcroExch.App'); AVDoc := AcroApp.GetActiveDoc; //Open PDF document from file AVDoc.Open(PDFFilePath, ''); PDDoc := AVDoc.GetPDDoc; nPages := PDDoc.GetNumPages; //Print all pages of the document nPSLevel := 0; bBinaryOk := 1; //true bShrinkToFit := 1; //true AVDoc.PrintPagesSilent(0, nPages - 1, nPSLevel, bBinaryOk, bShrinkToFit); //Close the document bNoSave := 1; AVDoc.Close(bNoSave); //Close Acrobat AcroApp.Exit; end; var TestFilePath: string; begin TestFilePath := ExtractFilePath(ParamStr(0)) + 'TestFile.pdf'; try CoInitialize(nil); try PrintPDFtoJPEG(TestFilePath); finally CoUninitialize; end; except on E: Exception do MessageDlg(E.ClassName + ' : ' + E.Message, mtError, [mbOK], 0); end; end.


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