在 Aspose.PDF FOSS for TypeScript 中转换和验证 PDF

// Semantic mode reflows from the structure tree, so this must run after the
// tagging pass: ToHtml falls back to a heuristic body when GetStructTree() is
// null, and the export loses its heading structure silently.
const semantic = doc.ToHtml();
const fixed = doc.ToHtml({ mode: 'fixed', fonts: 'embed' });

import { Document } from '@asposefoss/pdf';

const doc = Document.OpenFile('in.pdf');
const svg = doc.Pages[0].ToSvg();               // standalone <svg> string
const docx = doc.ToDocx();                       // .docx bytes, reflowed, images in the package
const fixed = doc.ToDocx({ mode: 'textbox' });   // .docx keeping each page's own geometry

import { Document } from '@asposefoss/pdf';

const doc = Document.OpenFile('in.pdf');
const pdfa = doc.ValidatePdfA('2b');
console.log(`validate: PDF/A-2b ${pdfa.Passed ? 'passes' : 'fails'}`);

// Conversion runs against a copy: the live document is still saved
// unconverted, so ConvertToPdfA must never touch it directly.
const pages = doc.Pages;
const allPages: number[] = [];
for (let i = 1; i <= pages.length; i++) allPages.push(i);
const copy = doc.ExtractPages(allPages);
const conversion = copy.ConvertToPdfA('2b');

console.log(`pdf/a convert: ${conversion.applied.length} action(s) applied, `
  + `${conversion.unresolved.length} unresolved`);
console.log(`result: ${conversion.passed ? 'passes' : 'still fails'} PDF/A-2b`);

git clone https://github.com/aspose-pdf-foss/Aspose.PDF-FOSS-for-TypeScript.git
cd Aspose.PDF-FOSS-for-TypeScript
npm install
npm run build

import { Document } from '@asposefoss/pdf';

const doc = Document.OpenFile('in.pdf');

const svg = doc.Pages[0].ToSvg();   // standalone <svg> string
const html = doc.ToHtml();          // reflowable HTML (falls back without a structure tree)
const docx = doc.ToDocx();          // .docx bytes, reflowed, images in the package

// fs.writeFileSync('page1.svg', svg);
// fs.writeFileSync('out.html', html);
// fs.writeFileSync('out.docx', docx);