Why LibreOffice doesn't show AltChunks in docx document? - ms-word

I use OpenXML to create Word document, and use AltChunks to copy part of other document in this one. Here just a simple snippet:
const string _altChunkID = "AltChunkID1111";
var chunk = mainPart.AddAlternativeFormatImportPart(
AlternativeFormatImportPartType.Html, _altChunkID);
string html =
#"<html>
<head/>
<body>
<h1>Html Heading</h1>
<p>This is an html document in a string literal.</p>
</body>
</html>";
using (Stream chunkStream = chunk.GetStream(FileMode.Create, FileAccess.Write))
using (StreamWriter stringStream = new StreamWriter(chunkStream))
stringStream.Write(html);
chunk.FeedData(ms);
var altChunk = new AltChunk {Id = _altChunkID};
mainPart.Document
.Body
.InsertAfter(altChunk, mainPart.Document.Body.Elements<Paragraph>().Last());
And it works. I open Word and see this AltChunk. But LibreOffice doesn's show me this AltChunk. In case when i open document in Word and save if LibreOffice starts to show AltChunk.
So what i doing wrong? Why is Microsoft Word showing document properly and LibreOffice isn't?

Related

copy contents from existing pdf to a new pdf using itextsharp

I am able to copy the contents and edit , but i am not getting the same template as the old one, the template is getting changed, and i have a image on my old file and that image is also not getting copied into my new file , rest of the other contents are getting copied,c an someone help me to make my new pdf file template as the old one, here is my code below.
public static void Main(string[] args)
{
var editedText = ExtractTextFromPdf(#"C:\backup_temp\Template.pdf");
string outputfile =#"C:\backup_temp\Result.pdf";
using (var fileStream = new FileStream(outputfile, FileMode.Create,
FileAccess.Write))
{
Document document = new Document(PageSize.A4, 25, 25, 30, 30);
PdfWriter writer = PdfWriter.GetInstance(document, fileStream);
document.Open();
document.Open();
document.Add(new Paragraph(editedText));
document.Close();
writer.Close();
fileStream.Close();
}
}
public static string ExtractTextFromPdf(string path)
{
using (PdfReader reader = new PdfReader(path))
{
StringBuilder text = new StringBuilder();
for (int i = 1; i <= reader.NumberOfPages; i++)
{
text.Append(PdfTextExtractor.GetTextFromPage(reader, i));
text.Replace("[DMxxxxxxx]", "[DM123456]");
}
return text.ToString();
}
}
As Bruno says, if your "template" is another pdf document, you can not achieve this functionality in a trivial way. Pdf documents do not automatically reflow their content. And to the best of my knowledge, there is no pdf library that will allow you to insert/replace/edit content and still produce a nice-looking document.
The best solution in your case would be:
store the template document as an easy to edit format
generate the pdf document based on this easy template
Example use-case:
I have some HTML document that contains the precise layout and images and text, and some placeholders for things I want to fill in.
I use JSoup (or some other library) to edit the DOM structure of my template, this is very easy since I can give elements IDs and simply change the content by ID. I don't need regular expressions.
I use pdfHTML (iText add-on) to convert my html document to pdf

Inserting a cross-reference with Aspose Words

Does anybody know if it is possible to insert a cross reference (I want to reference a bookmark, but I could make anything else work as well), using Aspose Words, in C#?
If you want to insert a footnote or endnote, you can use the following code.
DocumentBuilder builder = new DocumentBuilder(doc);
builder.Write("Some text is added.");
Footnote endNote = new Footnote(doc, FootnoteType.Endnote);
builder.CurrentParagraph.AppendChild(endNote);
endNote.Paragraphs.Add(new Paragraph(doc));
endNote.FirstParagraph.Runs.Add(new Run(doc, "Endnote text."));
doc.Save(MyDir + #"FootNote.docx");
If you want to insert a bookmark, you can use the following code.
Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);
builder.StartBookmark("MyBookmark");
builder.Writeln("Text inside a bookmark.");
builder.EndBookmark("MyBookmark")
If you want to update a bookmark, you can use the following code.
Document doc = new Document(MyDir + "Bookmark.doc");
// Use the indexer of the Bookmarks collection to obtain the desired bookmark.
Bookmark bookmark = doc.Range.Bookmarks["MyBookmark"];
// Get the name and text of the bookmark.
string name = bookmark.Name;
string text = bookmark.Text;
// Set the name and text of the bookmark.
bookmark.Name = "RenamedBookmark";
bookmark.Text = "This is a new bookmarked text.";
I work as developer evangelist at Aspose.
You can use the following code to get the page number of a bookmark.
Document doc = new Document("Bookmark.docx");
Aspose.Words.Layout.LayoutCollector layoutCollector = new Aspose.Words.Layout.LayoutCollector(doc);
// Use the indexer of the Bookmarks collection to obtain the desired bookmark.
Bookmark bookmark = doc.Range.Bookmarks["MyBookmark"];
// Get the name and text of the bookmark.
string name = bookmark.Name;
string text = bookmark.Text;
int pageNumber = layoutCollector.GetStartPageIndex(bookmark.BookmarkStart);
Console.Write("Bookmark name is {0}, it is placed on page number {1} and following is the text inside it: {2}", name, pageNumber, text);

OpenXml ChangeDocumentType

I need to convert a powerpoint template from potx to pptx. As seen here: http://www.codeproject.com/Tips/366463/Create-PowerPoint-presentation-using-PowerPoint-te I have tried with the following code. However the resulting pptx document is invalid and can't be opened by Office Powerpoint. If I skip the line newDoc.ChangeDocumentType then the resulting document is valid, but not converted to pptx.
templateContentBytes is a byte array containing the content of the potx document.
And temppath points to its local version.
using (var stream = new MemoryStream())
{
stream.Write(templateContentBytes, 0, templateContentBytes.Length);
using (var newdoc = PresentationDocument.Open(stream, true))
{
newdoc.ChangeDocumentType(PresentationDocumentType.Presentation);
PresentationPart presentationPart = newdoc.PresentationPart;
presentationPart.PresentationPropertiesPart.AddExternalRelationship(
"http://schemas.openxmlformats.org/officeDocument/2006/" + "relationships/attachedTemplate",
new Uri(tempPath, UriKind.Absolute));
presentationPart.Presentation.Save();
File.WriteAllBytes(tempPathResult, stream.ToArray());
I had the same problem, just move
File.WriteAllBytes(tempPathResult, stream.ToArray());
outside of the using

OpenXML editing docx

I have a dynamically generated docx file.
Need write the text strictly to end of page.
With Microsoft.Interop i insert Paragraphs before text:
int kk = objDoc.ComputeStatistics(WdStatistic.wdStatisticPages, ref wMissing);
while (objDoc.ComputeStatistics(WdStatistic.wdStatisticPages, ref wMissing) != kk + 1)
{
objWord.Selection.TypeParagraph();
}
objWord.Selection.TypeBackspace();
But i can't use same code with Open XML, because pages.count calculated only by word.
Using interop impossible, because it so slowwwww.
There are 2 options of doing this in Open XML.
create Content Place holder from Microsoft Office Developer Tab at the end of your document and now you can access this Content Place Holder programatically and can place any text in it.
you can append text driectly to your word document where it will be inserted at the end of your text. In this approach you got to write all the stuff to your document first and once you are done than you can append your document the following way
//
public void WriteTextToWordDocument()
{
using(WordprocessingDocument doc = WordprocessingDocument.Open(documentPath, true))
{
MainDocumentPart mainPart = doc.MainDocumentPart;
Body body = mainPart.Document.Body;
Paragraph paragraph = new Paragraph();
Run run = new Run();
Text myText = new Text("Append this text at the end of the word document");
run.Append(myText);
paragraph.Append(run);
body.Append(paragraph);
// dont forget to save and close your document as in the following two lines
mainPart.Document.Save();
doc.Close();
}
}
I haven't tested the above code but hope it will give you an idea of dealing with word document in OpenXML.
Regards,

OpenXML SDK and MathML

I use MathML to create some data blocks and I need to insert it throught OpenXML SDK into docx file. I've heard it is possible, but I didn't manage it. Could somebody help me with this problem?
As far as I know, the OpenXml SDK does not support presentation MathML out of the box.
Instead, the OpenXml SDK supports Office MathML.
So, to insert presentation MathML into a word document we first have
to transform the presentation MathML into Office MathML.
Fortunately, Microsoft provides a XSL file (called MML2OMML.xsl) to transform presentation MathML
into Office MathML. The file MML2OMML.xsl is located under %ProgramFiles%\Microsoft Office\Office12.
In conjunction with the .Net Framework class
XslCompiledTransform we are able to transform presentation MathML into Office MathML.
The next step is to create a OfficeMath object from the transformed MathML.
The OfficeMath class represents a run containing WordprocessingML which shall be handled as though it was Office Open XML Math.
For more info please refer to MSDN.
The presentation MathML does not contain font information. To get a nice result
we must add font information to the created OfficeMath object.
In the last step we have to add the OfficeMath object to our word document.
In the example below I simply search for the first Paragraph in a
word document called template.docx and add the OfficeMath object to the found paragraph.
XslCompiledTransform xslTransform = new XslCompiledTransform();
// The MML2OMML.xsl file is located under
// %ProgramFiles%\Microsoft Office\Office12\
xslTransform.Load("MML2OMML.xsl");
// Load the file containing your MathML presentation markup.
using (XmlReader reader = XmlReader.Create(File.Open("mathML.xml", FileMode.Open)))
{
using (MemoryStream ms = new MemoryStream())
{
XmlWriterSettings settings = xslTransform.OutputSettings.Clone();
// Configure xml writer to omit xml declaration.
settings.ConformanceLevel = ConformanceLevel.Fragment;
settings.OmitXmlDeclaration = true;
XmlWriter xw = XmlWriter.Create(ms, settings);
// Transform our MathML to OfficeMathML
xslTransform.Transform(reader, xw);
ms.Seek(0, SeekOrigin.Begin);
StreamReader sr = new StreamReader(ms, Encoding.UTF8);
string officeML = sr.ReadToEnd();
Console.Out.WriteLine(officeML);
// Create a OfficeMath instance from the
// OfficeMathML xml.
DocumentFormat.OpenXml.Math.OfficeMath om =
new DocumentFormat.OpenXml.Math.OfficeMath(officeML);
// Add the OfficeMath instance to our
// word template.
using (WordprocessingDocument wordDoc =
WordprocessingDocument.Open("template.docx", true))
{
DocumentFormat.OpenXml.Wordprocessing.Paragraph par =
wordDoc.MainDocumentPart.Document.Body.Descendants<DocumentFormat.OpenXml.Wordprocessing.Paragraph>().FirstOrDefault();
foreach (var currentRun in om.Descendants<DocumentFormat.OpenXml.Math.Run>())
{
// Add font information to every run.
DocumentFormat.OpenXml.Wordprocessing.RunProperties runProperties2 =
new DocumentFormat.OpenXml.Wordprocessing.RunProperties();
RunFonts runFonts2 = new RunFonts() { Ascii = "Cambria Math", HighAnsi = "Cambria Math" };
runProperties2.Append(runFonts2);
currentRun.InsertAt(runProperties2, 0);
}
par.Append(om);
}
}
}