PDF文書からテキスト、画像、署名などの情報を抽出できます。
他に、PDFの準拠レベル、暗号化や保護の有無、作成者、タイトル、作成日などのメタデータといった文書属性も抽出できます。
INFO:Toolbox Add-onのAPIリファレンス
はこちらです。(すべて英文)
C#のサンプルプロジェクトではPdftools SDK(Toolbox Add-on)ライブラリ(DLL)をNuGetから自動でダウンロードします。
CのサンプルプロジェクトにはPdftools SDK(Toolbox Add-on)ライブラリ(DLL)が含まれています。
ライセンスキー無し(無償)で試用できます。ただし、結果に「透かし」が入ります。
「透かし」の削除をご希望の場合は問い合わせページまたはメールでお問い合わせください。
License Agreement(利用許諾契約書)が含まれていますので必ず確認してください。
このプロジェクトでは、ページ上の位置に基づいてテキスト コンテンツを単語や文に組み立てるヒューリスティック(発見的情報)の使用も示します。
PDFからページごとに抽出したテキストをコンソールに書き込みます。
2つのテキストが同じ単語に属しているかどうかをヒューリスティックに判断します。
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
{
int pageNumber = 1;
// Process each page
foreach (var inPage in inDoc.Pages)
{
Console.WriteLine("==========");
Console.WriteLine($"Page: {pageNumber++}");
Console.WriteLine("==========");
ContentExtractor extractor = new ContentExtractor(inPage.Content);
extractor.Ungrouping = UngroupingSelection.All;
// Iterate over all content elements and only process text elements
foreach (ContentElement element in extractor)
if (element is TextElement textElement)
WriteText(textElement.Text);
}
}
private static void WriteText(Text text)
{
string textPart = "";
// Write all text fragments
// Determine heuristically if there is a space between two text fragments
for (int iFragment = 0; iFragment < text.Count; iFragment++)
{
TextFragment currFragment = text[iFragment];
if (iFragment == 0)
textPart += currFragment.Text;
else
{
TextFragment lastFragment = text[iFragment - 1];
if (currFragment.CharacterSpacing != lastFragment.CharacterSpacing ||
currFragment.FontSize != lastFragment.FontSize ||
currFragment.HorizontalScaling != lastFragment.HorizontalScaling ||
currFragment.Rise != lastFragment.Rise ||
currFragment.WordSpacing != lastFragment.WordSpacing)
textPart += $" {currFragment.Text}";
else
{
Point currentBotLeft = currFragment.Transform.TransformRectangle(currFragment.BoundingBox).BottomLeft;
Point beforeBotRight = lastFragment.Transform.TransformRectangle(lastFragment.BoundingBox).BottomRight;
if (beforeBotRight.X < currentBotLeft.X - 0.7 * currFragment.FontSize ||
beforeBotRight.Y < currentBotLeft.Y - 0.1 * currFragment.FontSize ||
currentBotLeft.Y < beforeBotRight.Y - 0.1 * currFragment.FontSize)
textPart += $" {currFragment.Text}";
else
textPart += currFragment.Text;
}
}
}
Console.WriteLine(textPart);
}
画像抽出機能はPDFに埋め込まれた画像コンテンツ要素を画像ファイルとして出力します。
画像はBMP、JPEG、JPEG2000、JBIG2、PNG、GIF、TIFF形式で出力できます。
PDFに埋め込まれた画像データを記載された圧縮形式に応じてJPEG または TIFF として抽出します。
// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PtxSysCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PtxPdf_Document_Open(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"),
szInPath, szErrorBuff, Ptx_GetLastError());
// Loop over all pages and extract images
pInPageList = PtxPdf_Document_GetPages(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInPageList,
_T("Failed to get the pages of the input document. %s (ErrorCode: 0x%08x).\n"),
szErrorBuff, Ptx_GetLastError());
for (int iPageNo = 0; iPageNo < PtxPdf_PageList_GetCount(pInPageList); iPageNo++)
{
pPage = PtxPdf_PageList_Get(pInPageList, iPageNo);
pContent = PtxPdf_Page_GetContent(pPage);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pContent, _T("Failed to get content from page %d. %s (ErrorCode: 0x%08x).\n"),
iPageNo + 1, szErrorBuff, Ptx_GetLastError());
pExtractor = PtxPdfContent_ContentExtractor_New(pContent);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pExtractor,
_T("Failed to create content extractor. %s (ErrorCode: 0x%08x).\n"),
szErrorBuff, Ptx_GetLastError());
GOTO_CLEANUP_IF_FALSE_PRINT_ERROR(extractImages(pExtractor, iPageNo + 1, szOutputDir),
_T("Error occurred while extracting images. %s (ErrorCode: 0x%08x).\n"),
szErrorBuff, Ptx_GetLastError());
if (pPage != NULL)
{
Ptx_Release(pPage);
pPage = NULL;
}
if (pContent != NULL)
{
Ptx_Release(pContent);
pContent = NULL;
}
}
int extractImages(TPtxPdfContent_ContentExtractor* pExtractor, int iPageNo, const TCHAR* szOutputDir)
{
int iImgCount = 0;
int iImgMaskCount = 0;
TPtxPdfContent_ContentExtractorIterator* pIterator = NULL;
TPtxPdfContent_ContentElement* pContentElement = NULL;
TPtxPdfContent_Image* pImage = NULL;
TPtxPdfContent_ImageMask* pImageMask = NULL;
TCHAR* szExtension = NULL;
FILE* pOutStream = NULL;
pIterator = PtxPdfContent_ContentExtractor_GetIterator(pExtractor);
GOTO_CLEANUP_IF_NULL(pIterator, _T("Failed to get iterator.\n"));
PtxPdfContent_ContentExtractorIterator_MoveNext(pIterator);
while (pContentElement = PtxPdfContent_ContentExtractorIterator_GetValue(pIterator))
{
TPtxPdfContent_ContentElementType iType = PtxPdfContent_ContentElement_GetType(pContentElement);
if (iType == ePtxPdfContent_ContentElementType_ImageElement)
{
iImgCount++;
pImage = PtxPdfContent_ImageElement_GetImage((TPtxPdfContent_ImageElement*)pContentElement);
GOTO_CLEANUP_IF_NULL(pImage, _T("Failed to get image.\n"));
const TPtxPdfContent_ImageType iImageType = PtxPdfContent_Image_GetDefaultImageType(pImage);
if (iImageType == ePtxPdfContent_ImageType_Jpeg)
szExtension = _T(".jpg");
else
szExtension = _T(".tiff");
TCHAR szOutPath[256] = {'\0'};
_stprintf(szOutPath, _T("%s/image_page%d_%d%s"), szOutputDir, iPageNo, iImgCount, szExtension);
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
TPtxSys_StreamDescriptor outDescriptor;
PtxSysCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
if (PtxPdfContent_Image_Extract(pImage, &outDescriptor, NULL) == FALSE)
{
if (Ptx_GetLastError() == ePtx_Error_Generic)
{
nBufSize = Ptx_GetLastErrorMessage(NULL, 0);
Ptx_GetLastErrorMessage(szErrorBuff, MIN(ARRAY_SIZE(szErrorBuff), nBufSize));
_tprintf(szErrorBuff);
}
else
return FALSE;
}
if (pImage != NULL)
{
Ptx_Release(pImage);
pImage = NULL;
}
if (pOutStream != NULL)
{
fclose(pOutStream);
pOutStream = NULL;
}
}
else if (iType == ePtxPdfContent_ContentElementType_ImageMaskElement)
{
iImgMaskCount++;
pImageMask = PtxPdfContent_ImageMaskElement_GetImageMask((TPtxPdfContent_ImageMaskElement*)pContentElement);
GOTO_CLEANUP_IF_NULL(pImageMask, _T("Failed to get image.\n"));
szExtension = _T(".tiff");
TCHAR szOutPath[256] = {'\0'};
_stprintf(szOutPath, _T("%s/image_mask_page%d_%d%s"), szOutputDir, iPageNo, iImgMaskCount, szExtension);
pOutStream = _tfopen(szOutPath, _T("wb+"));
GOTO_CLEANUP_IF_NULL(pOutStream, _T("Failed to open output file \"%s\".\n"), szOutPath);
TPtxSys_StreamDescriptor outDescriptor;
PtxSysCreateFILEStreamDescriptor(&outDescriptor, pOutStream, 0);
if (PtxPdfContent_ImageMask_Extract(pImageMask, &outDescriptor, NULL) == FALSE)
{
if (Ptx_GetLastError() == ePtx_Error_Generic)
{
nBufSize = Ptx_GetLastErrorMessage(NULL, 0);
Ptx_GetLastErrorMessage(szErrorBuff, MIN(ARRAY_SIZE(szErrorBuff), nBufSize));
_tprintf(szErrorBuff);
}
else
return FALSE;
}
if (pImageMask != NULL)
{
Ptx_Release(pImageMask);
pImageMask = NULL;
}
if (pOutStream != NULL)
{
fclose(pOutStream);
pOutStream = NULL;
}
}
if (pContentElement != NULL)
{
Ptx_Release(pContentElement);
pContentElement = NULL;
}
PtxPdfContent_ContentExtractorIterator_MoveNext(pIterator);
}
cleanup:
if (pImage != NULL)
Ptx_Release(pImage);
if (pImageMask != NULL)
Ptx_Release(pImageMask);
if (pContentElement != NULL)
Ptx_Release(pContentElement);
if (pIterator != NULL)
Ptx_Release(pIterator);
if (pOutStream != NULL)
fclose(pOutStream);
return iReturnValue == 1 ? FALSE : TRUE;
}
// Open input document
using (Stream stream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document doc = Document.Open(stream, null))
{
// Loop over all pages and extract images
for (int i = 0; i < doc.Pages.Count; i++)
{
ContentExtractor extractor = new ContentExtractor(doc.Pages[i].Content);
ExtractImages(extractor, i + 1, outputDir);
}
}
private static void ExtractImages(ContentExtractor extractor, int pageNo, string outputDir)
{
int imgCount = 0;
int imgMaskCount = 0;
foreach (ContentElement contentElement in extractor)
{
if (contentElement is ImageElement element)
{
imgCount++;
string extension = ".tiff";
switch (element.Image.DefaultImageType)
{
case ImageType.Jpeg:
extension = ".jpg";
break;
case ImageType.Tiff:
extension = ".tiff";
break;
default:
break;
}
string outputPath = System.IO.Path.Combine(outputDir, $"image_page{pageNo}_{imgCount}{extension}");
try
{
using (Stream imageStream = new FileStream(outputPath, FileMode.Create, FileAccess.ReadWrite))
{
element.Image.Extract(imageStream);
}
}
catch (GenericException ex)
{
Console.WriteLine(ex.ToString());
}
}
else if (contentElement is ImageMaskElement maskElement)
{
imgMaskCount++;
string extension = ".tiff";
string outputPath = System.IO.Path.Combine(outputDir, $"image_mask_page{pageNo}_{imgMaskCount}{extension}");
try
{
using (Stream imageStream = new FileStream(outputPath, FileMode.Create, FileAccess.ReadWrite))
{
maskElement.ImageMask.Extract(imageStream);
}
}
catch (GenericException ex)
{
Console.WriteLine(ex.ToString());
}
}
}
}
名前、日付、連絡先などの署名情報を自動的に抽出します。
PDF内のすべての署名フィールドとそのプロパティを一覧表示します。
// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PtxSysCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PtxPdf_Document_Open(&descriptor, _T(""));
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"),
szInPath, szErrorBuff, Ptx_GetLastError());
// Get signatures of input PDF
pSignatureFields = PtxPdf_Document_GetSignatureFields(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pSignatureFields,
_T("Failed to get signatures of input PDF. %s (ErrorCode: 0x%08x).\n"),
szErrorBuff, Ptx_GetLastError());
_tprintf(_T("Number of signature fields: %d\n"), PtxPdfForms_SignatureFieldList_GetCount(pSignatureFields));
for (int i = 0; i < PtxPdfForms_SignatureFieldList_GetCount(pSignatureFields); i++)
{
pSig = PtxPdfForms_SignatureFieldList_Get(pSignatureFields, i);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pSig, _T("Failed to get signature. %s (ErrorCode: 0x%08x).\n"), szErrorBuff,
Ptx_GetLastError());
TPtxPdfForms_SignatureFieldType iFieldType = PtxPdfForms_SignatureField_GetType(pSig);
if (iFieldType == ePtxPdfForms_SignatureFieldType_Signature ||
iFieldType == ePtxPdfForms_SignatureFieldType_DocMdpSignature ||
iFieldType == ePtxPdfForms_SignatureFieldType_DocumentSignature)
{
// List name
size_t nName = PtxPdfForms_SignedSignatureField_GetName(pSig, NULL, 0);
_tprintf(_T("- %s fields"), PtxPdfForms_SignatureField_IsVisible(pSig) ? _T("Visible") : _T("Invisible"));
if (nName != 0)
{
TCHAR* szName = (TCHAR*)malloc(nName * sizeof(TCHAR));
if (szName != NULL)
{
PtxPdfForms_SignedSignatureField_GetName(pSig, szName, nName);
_tprintf(_T(", signed by: %s"), szName);
free(szName);
}
}
_tprintf(_T("\n"));
// List location
size_t nLocation = PtxPdfForms_Signature_GetLocation(pSig, NULL, 0);
if (nLocation != 0)
{
TCHAR* szLocation = (TCHAR*)malloc(nLocation * sizeof(TCHAR));
if (szLocation != NULL)
{
PtxPdfForms_Signature_GetLocation(pSig, szLocation, nLocation);
_tprintf(_T(" - Location: %s\n"), szLocation);
free(szLocation);
}
}
// List reason
size_t nReason = PtxPdfForms_Signature_GetReason(pSig, NULL, 0);
if (nReason != 0)
{
TCHAR* szReason = (TCHAR*)malloc(nReason * sizeof(TCHAR));
if (szReason != NULL)
{
PtxPdfForms_Signature_GetReason(pSig, szReason, nReason);
_tprintf(_T(" - Reason: %s\n"), szReason);
free(szReason);
}
}
// List contact info
size_t nContactInfo = PtxPdfForms_Signature_GetContactInfo(pSig, NULL, 0);
if (nContactInfo != 0)
{
TCHAR* szContactInfo = (TCHAR*)malloc(nContactInfo * sizeof(TCHAR));
if (szContactInfo != NULL)
{
PtxPdfForms_Signature_GetContactInfo(pSig, szContactInfo, nContactInfo);
_tprintf(_T(" - Contact info: %s\n"), szContactInfo);
free(szContactInfo);
}
}
// List date
if (PtxPdfForms_SignedSignatureField_GetDate(pSig, &date) == TRUE)
{
_tprintf(_T(" - Date: %02d-%02d-%d %02d:%02d:%02d%c%02d:%02d\n"), date.iYear, date.iMonth, date.iDay,
date.iHour, date.iMinute, date.iSecond, date.iTZSign >= 0 ? '+' : '-', date.iTZHour,
date.iTZMinute);
}
}
else
{
_tprintf(_T("- %s field, not signed\n"),
PtxPdfForms_SignatureField_IsVisible(pSig) ? _T("Visible") : _T("Invisible"));
}
}
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, null))
{
SignatureFieldList signatureFields = inDoc.SignatureFields;
Console.WriteLine("Number of signature fields: {0}", signatureFields.Count);
foreach (SignatureField field in signatureFields)
{
if (field is Signature sig)
{
// List name
string name = sig.Name;
Console.WriteLine("- {0} fields, signed by: {1}",
sig.IsVisible ? "Visible" : "Invisible", name ?? "(Unknown name)");
// List location
string location = sig.Location;
if (location != null)
Console.WriteLine(" - Location: {0}", location);
// List reason
string reason = sig.Reason;
if (reason != null)
Console.WriteLine(" - Reason: {0}", reason);
// List contact info
string contactInfo = sig.ContactInfo;
if (contactInfo != null)
Console.WriteLine(" - Contact info: {0}", contactInfo);
// List date
DateTimeOffset? date = sig.Date;
if (date != null)
Console.WriteLine(" - Date: {0}", date.Value);
}
else
Console.WriteLine("- {0} field, not signed", field.IsVisible ? "Visible" : "Invisible");
}
}
PDFの属性(PF準拠性や暗号化情報)とメタデータ(作成者、タイトル、作成日など)を一覧表示します。
// Open input document
pInStream = _tfopen(szInPath, _T("rb"));
GOTO_CLEANUP_IF_NULL(pInStream, _T("Failed to open input file \"%s\".\n"), szInPath);
PtxSysCreateFILEStreamDescriptor(&descriptor, pInStream, 0);
pInDoc = PtxPdf_Document_Open(&descriptor, szPassword);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pInDoc, _T("Input file \"%s\" cannot be opened. %s (ErrorCode: 0x%08x).\n"),
szInPath, szErrorBuff, Ptx_GetLastError());
// Conformance
TPtxPdf_Conformance conformance = PtxPdf_Document_GetConformance(pInDoc);
if (conformance == 0)
{
GOTO_CLEANUP(szErrorBuff, Ptx_GetLastError());
}
_tprintf(_T("Conformance: "));
switch (conformance)
{
case ePtxPdf_Conformance_Pdf10:
_tprintf(_T("PDF 1.0\n"));
break;
case ePtxPdf_Conformance_Pdf11:
_tprintf(_T("PDF 1.1\n"));
break;
case ePtxPdf_Conformance_Pdf12:
_tprintf(_T("PDF 1.2\n"));
break;
case ePtxPdf_Conformance_Pdf13:
_tprintf(_T("PDF 1.3\n"));
break;
case ePtxPdf_Conformance_Pdf14:
_tprintf(_T("PDF 1.4\n"));
break;
case ePtxPdf_Conformance_Pdf15:
_tprintf(_T("PDF 1.5\n"));
break;
case ePtxPdf_Conformance_Pdf16:
_tprintf(_T("PDF 1.6\n"));
break;
case ePtxPdf_Conformance_Pdf17:
_tprintf(_T("PDF 1.7\n"));
break;
case ePtxPdf_Conformance_Pdf20:
_tprintf(_T("PDF 2.0\n"));
break;
case ePtxPdf_Conformance_PdfA1B:
_tprintf(_T("PDF/A1-b\n"));
break;
case ePtxPdf_Conformance_PdfA1A:
_tprintf(_T("PDF/A1-a\n"));
break;
case ePtxPdf_Conformance_PdfA2B:
_tprintf(_T("PDF/A2-b\n"));
break;
case ePtxPdf_Conformance_PdfA2U:
_tprintf(_T("PDF/A2-u\n"));
break;
case ePtxPdf_Conformance_PdfA2A:
_tprintf(_T("PDF/A2-a\n"));
break;
case ePtxPdf_Conformance_PdfA3B:
_tprintf(_T("PDF/A3-b\n"));
break;
case ePtxPdf_Conformance_PdfA3U:
_tprintf(_T("PDF/A3-u\n"));
break;
case ePtxPdf_Conformance_PdfA3A:
_tprintf(_T("PDF/A3-a\n"));
break;
}
// Encryption information
TPtxPdf_Permission permissions;
BOOL iRet = PtxPdf_Document_GetPermissions(pInDoc, &permissions);
if (iRet == FALSE)
{
if (Ptx_GetLastError() != ePtx_Error_Success)
GOTO_CLEANUP(szErrorBuff, Ptx_GetLastError());
_tprintf(_T("Not encrypted\n"));
}
else
{
_tprintf(_T("Encryption:\n"));
_tprintf(_T(" - Permissions: "));
if (permissions & ePtxPdf_Permission_Print)
_tprintf(_T("Print, "));
if (permissions & ePtxPdf_Permission_Modify)
_tprintf(_T("Modify, "));
if (permissions & ePtxPdf_Permission_Copy)
_tprintf(_T("Copy, "));
if (permissions & ePtxPdf_Permission_Annotate)
_tprintf(_T("Annotate, "));
if (permissions & ePtxPdf_Permission_FillForms)
_tprintf(_T("FillForms, "));
if (permissions & ePtxPdf_Permission_SupportDisabilities)
_tprintf(_T("SupportDisabilities, "));
if (permissions & ePtxPdf_Permission_Assemble)
_tprintf(_T("Assemble, "));
if (permissions & ePtxPdf_Permission_DigitalPrint)
_tprintf(_T("DigitalPrint, "));
_tprintf(_T("\n"));
}
// Get metadata of input PDF
pMetadata = PtxPdf_Document_GetMetadata(pInDoc);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pMetadata, _T("Failed to get metadata. %s (ErrorCode: 0x%08x).\n"), szErrorBuff,
Ptx_GetLastError());
_tprintf(_T("Document information:\n"));
// Get title
size_t nTitle = PtxPdf_Metadata_GetTitle(pMetadata, NULL, 0);
if (nTitle != 0)
{
TCHAR* szTitle = (TCHAR*)malloc(nTitle * sizeof(TCHAR));
if (szTitle != NULL)
{
PtxPdf_Metadata_GetTitle(pMetadata, szTitle, nTitle);
_tprintf(_T(" - Title: %s\n"), szTitle);
free(szTitle);
}
}
// Get author
size_t nAuthor = PtxPdf_Metadata_GetAuthor(pMetadata, NULL, 0);
if (nAuthor != 0)
{
TCHAR* szAuthor = (TCHAR*)malloc(nAuthor * sizeof(TCHAR));
if (szAuthor != NULL)
{
PtxPdf_Metadata_GetAuthor(pMetadata, szAuthor, nAuthor);
_tprintf(_T(" - Author: %s\n"), szAuthor);
free(szAuthor);
}
}
// Get creator
size_t nCreator = PtxPdf_Metadata_GetCreator(pMetadata, NULL, 0);
if (nCreator != 0)
{
TCHAR* szCreator = (TCHAR*)malloc(nCreator * sizeof(TCHAR));
if (szCreator != NULL)
{
PtxPdf_Metadata_GetCreator(pMetadata, szCreator, nCreator);
_tprintf(_T(" - Creator: %s\n"), szCreator);
free(szCreator);
}
}
// Get producer
size_t nProducer = PtxPdf_Metadata_GetProducer(pMetadata, NULL, 0);
if (nProducer != 0)
{
TCHAR* szProducer = (TCHAR*)malloc(nProducer * sizeof(TCHAR));
if (szProducer != NULL)
{
PtxPdf_Metadata_GetProducer(pMetadata, szProducer, nProducer);
_tprintf(_T(" - Producer: %s\n"), szProducer);
free(szProducer);
}
}
// Get subject
size_t nSubject = PtxPdf_Metadata_GetSubject(pMetadata, NULL, 0);
if (nSubject != 0)
{
TCHAR* szSubject = (TCHAR*)malloc(nSubject * sizeof(TCHAR));
if (szSubject != NULL)
{
PtxPdf_Metadata_GetSubject(pMetadata, szSubject, nSubject);
_tprintf(_T(" - Subject: %s\n"), szSubject);
free(szSubject);
}
}
// Get keywords
size_t nKeywords = PtxPdf_Metadata_GetKeywords(pMetadata, NULL, 0);
if (nKeywords != 0)
{
TCHAR* szKeywords = (TCHAR*)malloc(nKeywords * sizeof(TCHAR));
if (szKeywords != NULL)
{
PtxPdf_Metadata_GetKeywords(pMetadata, szKeywords, nKeywords);
_tprintf(_T(" - Keywords: %s\n"), szKeywords);
free(szKeywords);
}
}
// Get creation date
if (PtxPdf_Metadata_GetCreationDate(pMetadata, &date) == TRUE)
{
_tprintf(_T(" - Creation Date: %02d-%02d-%d %02d:%02d:%02d%c%02d:%02d\n"), date.iYear, date.iMonth, date.iDay,
date.iHour, date.iMinute, date.iSecond, date.iTZSign >= 0 ? '+' : '-', date.iTZHour, date.iTZMinute);
}
// Get modification date
if (PtxPdf_Metadata_GetModificationDate(pMetadata, &date) == TRUE)
{
_tprintf(_T(" - Modification Date: %02d-%02d-%d %02d:%02d:%02d%c%02d:%02d\n"), date.iYear, date.iMonth,
date.iDay, date.iHour, date.iMinute, date.iSecond, date.iTZSign >= 0 ? '+' : '-', date.iTZHour,
date.iTZMinute);
}
// Get custom entries
_tprintf(_T("Custom entries:\n"));
TPtx_StringMap* pCustomEntries = PtxPdf_Metadata_GetCustomEntries(pMetadata);
GOTO_CLEANUP_IF_NULL_PRINT_ERROR(pCustomEntries, _T("Failed to get custom entries. %s (ErrorCode: 0x%08x).\n"),
szErrorBuff, Ptx_GetLastError());
for (int i = Ptx_StringMap_GetBegin(pCustomEntries), iEnd = Ptx_StringMap_GetEnd(pCustomEntries); i != iEnd;
i = Ptx_StringMap_GetNext(pCustomEntries, i))
{
size_t nKeySize = Ptx_StringMap_GetKey(pCustomEntries, i, NULL, 0);
TCHAR* szKey = (TCHAR*)malloc(nKeySize * sizeof(TCHAR));
nKeySize = Ptx_StringMap_GetKey(pCustomEntries, i, szKey, nKeySize);
size_t nValueSize = Ptx_StringMap_GetValue(pCustomEntries, i, NULL, 0);
TCHAR* szValue = (TCHAR*)malloc(nValueSize * sizeof(TCHAR));
nValueSize = Ptx_StringMap_GetValue(pCustomEntries, i, szValue, nValueSize);
if (szKey && nKeySize && szValue && nValueSize)
_tprintf(_T(" - %s: %s\n"), szKey, szValue);
free(szKey);
free(szValue);
}
// Open input document
using (Stream inStream = new FileStream(inPath, FileMode.Open, FileAccess.Read))
using (Document inDoc = Document.Open(inStream, password))
{
// Conformance
Console.WriteLine("Conformance: {0}", inDoc.Conformance.ToString());
// Encryption information
Permission? permissions = inDoc.Permissions;
if (!permissions.HasValue)
{
Console.WriteLine("Not encrypted");
}
else
{
Console.WriteLine("Encryption:");
Console.Write(" - Permissions: ");
foreach (Enum flag in Enum.GetValues(typeof(Permission)))
if (permissions.Value.HasFlag(flag))
Console.Write("{0}, ", flag.ToString());
Console.WriteLine();
}
// Get metadata
Metadata metadata = inDoc.Metadata;
Console.WriteLine("Document information:");
// Get title
string title = metadata.Title;
if (title != null)
Console.WriteLine(" - Title: {0}", title);
// Get author
string author = metadata.Author;
if (author != null)
Console.WriteLine(" - Author: {0}", author);
// Get subject
string subject = metadata.Subject;
if (subject != null)
Console.WriteLine(" - Subject: {0}", subject);
// Get keywords
string keywords = metadata.Keywords;
if (keywords != null)
Console.WriteLine(" - Keywords: {0}", keywords);
// Get creation date
DateTimeOffset? creationDate = metadata.CreationDate;
if (creationDate != null)
Console.WriteLine(" - Creation Date: {0}", creationDate);
// Get modification date
DateTimeOffset? modificationDate = metadata.ModificationDate;
if (modificationDate != null)
Console.WriteLine(" - Modification Date: {0}", modificationDate);
// Get creator
string creator = metadata.Creator;
if (creator != null)
Console.WriteLine(" - Creator: {0}", creator);
// Get producer
string producer = metadata.Producer;
if (producer != null)
Console.WriteLine(" - Producer: {0}", producer);
// Custom entries
Console.WriteLine("Custom entries:");
foreach (var entry in metadata.CustomEntries)
Console.WriteLine(" - {0}: {1}", entry.Key, entry.Value);
}
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