| GetEmbeddedFiles Function | ||
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Gets all the embedded files in this document
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Syntax
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[C#]
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Params
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Notes
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Gets all the embedded files in this document. PDF documents can contain a set of named files. These files can then be referenced by name elsewhere in the document. The most common case in which named files are used is in the case of PDF portfolios. Adobe now uses the name Portfolio for this type of document but in the PDF specification they are known as Portable Collections. While the names may vary, the two are the same. PDF Portfolios appear as one PDF document but actually contain many. Typically the first document represents the visible face of the collection when opened. After the collection is open you can switch between the embedded PDFs. PDF portfolios can be used to represent a folder of PDFs. For example you might find a portable collection being used to display multiple emails within a single PDF Portfolio.
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Example
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The example below show how to extract all the files embedded in a PDF portfolio. See the FileSpecification constructor for the creation of portfolios.
using var doc = new Doc();
var ro = new XReadOptions();
ro.OpenPortfolios = false;
doc.Read(Server.MapPath("Portfolio1.pdf"), ro);
var files = doc.ObjectSoup.Catalog.GetEmbeddedFiles();
foreach (var pair in files) {
var fileSpec = pair.Value;
fileSpec.Rationalize();
var file = fileSpec.EmbeddedFile;
if ((file != null) && (file.Decompress())) {
string name = "Portfolio_" + fileSpec.Uri;
string path = name;
File.WriteAllBytes(path, file.GetData());
}
}
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