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fix: normalize pdf on the server

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Mythie
2024-12-18 08:14:14 +11:00
parent c161553d1d
commit 390a317bd3
5 changed files with 51 additions and 8 deletions
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1
packages/lib/server-only/pdf/flatten-form.ts
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@ -16,7 +16,6 @@ import {
export const removeOptionalContentGroups = (document: PDFDocument) => {
const context = document.context;
const catalog = context.lookup(context.trailerInfo.Root);
if (catalog instanceof PDFDict) {
catalog.delete(PDFName.of('OCProperties'));
}

18
packages/lib/server-only/pdf/normalize-pdf.ts Normal file
View File

@ -0,0 +1,18 @@
import { PDFDocument } from 'pdf-lib';
import { flattenAnnotations } from './flatten-annotations';
import { flattenForm, removeOptionalContentGroups } from './flatten-form';
export const normalizePdf = async (pdf: Buffer) => {
const pdfDoc = await PDFDocument.load(pdf).catch(() => null);
if (!pdfDoc) {
return pdf;
}
removeOptionalContentGroups(pdfDoc);
flattenForm(pdfDoc);
flattenAnnotations(pdfDoc);
return Buffer.from(await pdfDoc.save());
};