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2025-05-13 12:01:17 +02:00
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node_modules/pdf-lib/es/api/PDFEmbeddedFile.js generated vendored Normal file
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import { __awaiter, __generator } from "tslib";
import { PDFName, PDFArray, PDFDict, PDFHexString } from "../core";
/**
* Represents a file that has been embedded in a [[PDFDocument]].
*/
var PDFEmbeddedFile = /** @class */ (function () {
function PDFEmbeddedFile(ref, doc, embedder) {
this.alreadyEmbedded = false;
this.ref = ref;
this.doc = doc;
this.embedder = embedder;
}
/**
* > **NOTE:** You probably don't need to call this method directly. The
* > [[PDFDocument.save]] and [[PDFDocument.saveAsBase64]] methods will
* > automatically ensure all embeddable files get embedded.
*
* Embed this embeddable file in its document.
*
* @returns Resolves when the embedding is complete.
*/
PDFEmbeddedFile.prototype.embed = function () {
return __awaiter(this, void 0, void 0, function () {
var ref, Names, EmbeddedFiles, EFNames, AF;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!!this.alreadyEmbedded) return [3 /*break*/, 2];
return [4 /*yield*/, this.embedder.embedIntoContext(this.doc.context, this.ref)];
case 1:
ref = _a.sent();
if (!this.doc.catalog.has(PDFName.of('Names'))) {
this.doc.catalog.set(PDFName.of('Names'), this.doc.context.obj({}));
}
Names = this.doc.catalog.lookup(PDFName.of('Names'), PDFDict);
if (!Names.has(PDFName.of('EmbeddedFiles'))) {
Names.set(PDFName.of('EmbeddedFiles'), this.doc.context.obj({}));
}
EmbeddedFiles = Names.lookup(PDFName.of('EmbeddedFiles'), PDFDict);
if (!EmbeddedFiles.has(PDFName.of('Names'))) {
EmbeddedFiles.set(PDFName.of('Names'), this.doc.context.obj([]));
}
EFNames = EmbeddedFiles.lookup(PDFName.of('Names'), PDFArray);
EFNames.push(PDFHexString.fromText(this.embedder.fileName));
EFNames.push(ref);
/**
* The AF-Tag is needed to achieve PDF-A3 compliance for embedded files
*
* The following document outlines the uses cases of the associated files (AF) tag.
* See:
* https://www.pdfa.org/wp-content/uploads/2018/10/PDF20_AN002-AF.pdf
*/
if (!this.doc.catalog.has(PDFName.of('AF'))) {
this.doc.catalog.set(PDFName.of('AF'), this.doc.context.obj([]));
}
AF = this.doc.catalog.lookup(PDFName.of('AF'), PDFArray);
AF.push(ref);
this.alreadyEmbedded = true;
_a.label = 2;
case 2: return [2 /*return*/];
}
});
});
};
/**
* > **NOTE:** You probably don't want to call this method directly. Instead,
* > consider using the [[PDFDocument.attach]] method, which will create
* instances of [[PDFEmbeddedFile]] for you.
*
* Create an instance of [[PDFEmbeddedFile]] from an existing ref and embedder
*
* @param ref The unique reference for this file.
* @param doc The document to which the file will belong.
* @param embedder The embedder that will be used to embed the file.
*/
PDFEmbeddedFile.of = function (ref, doc, embedder) {
return new PDFEmbeddedFile(ref, doc, embedder);
};
return PDFEmbeddedFile;
}());
export default PDFEmbeddedFile;
//# sourceMappingURL=PDFEmbeddedFile.js.map