mirror of
https://github.com/Frooodle/Stirling-PDF.git
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57 lines
2.3 KiB
TypeScript
57 lines
2.3 KiB
TypeScript
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import { PDFDocument, ParseSpeeds } from 'pdf-lib';
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import { PdfFile, fromPdfLib } from '../wrappers/PdfFile';
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export type Metadata = {
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deleteAll?: boolean, // Delete all metadata if set to true
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author?: string, // The author of the document
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creationDate?: Date, // The creation date of the document (format: yyyy/MM/dd HH:mm:ss)
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creator?: string, // The creator of the document
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keywords?: string, // The keywords for the document
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modificationDate?: Date, // The modification date of the document (format: yyyy/MM/dd HH:mm:ss)
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producer?: string, // The producer of the document
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subject?: string, // The subject of the document
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title?: string, // The title of the document
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//trapped?: string, // The trapped status of the document
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//allRequestParams?: {[key: string]: [key: string]}, // Map list of key and value of custom parameters. Note these must start with customKey and customValue if they are non-standard
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}
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export async function updateMetadata(file: PdfFile, metadata: Metadata|null): Promise<PdfFile> {
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const pdfDoc = await file.getAsPdfLib();
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if (!metadata || metadata.deleteAll) {
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pdfDoc.setAuthor("");
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pdfDoc.setCreationDate(new Date(0))
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pdfDoc.setCreator("")
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pdfDoc.setKeywords([])
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pdfDoc.setModificationDate(new Date(0))
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pdfDoc.setProducer("")
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pdfDoc.setSubject("")
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pdfDoc.setTitle("")
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}
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if (!metadata) {
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return fromPdfLib(pdfDoc, file.filename);
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}
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if(metadata.author)
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pdfDoc.setAuthor(metadata.author);
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if(metadata.creationDate)
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pdfDoc.setCreationDate(metadata.creationDate)
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if(metadata.creator)
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pdfDoc.setCreator(metadata.creator)
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if(metadata.keywords)
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pdfDoc.setKeywords(metadata.keywords.split(","))
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if(metadata.modificationDate)
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pdfDoc.setModificationDate(metadata.modificationDate)
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if(metadata.producer)
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pdfDoc.setProducer(metadata.producer)
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if(metadata.subject)
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pdfDoc.setSubject(metadata.subject)
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if(metadata.title)
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pdfDoc.setTitle(metadata.title)
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// TODO add trapped and custom metadata. May need another library
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return fromPdfLib(pdfDoc, file.filename);
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};
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