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How to use Hopding / pdf-lib with pure javascript? (Without using a package manager)

stackoverflow.com › questions › 74958171 › how-to-use-hopding-pdf-lib-with-pure-javascript-without-using-a-package-mana

You can use the UMD Module as mentioned in their GitHub page. Here are some of the useful information I extracted from their GitHub page.

UMD Module

You can also download pdf-lib as a UMD module from unpkg or jsDelivr. The UMD builds have been compiled to ES5, so they should work in any modern browser. UMD builds are useful if you aren't using a package manager or module bundler. For example, you can use them directly in the tag of an HTML page.

The following builds are available:

https://unpkg.com/pdf-lib/dist/pdf-lib.js
https://unpkg.com/pdf-lib/dist/pdf-lib.min.js
https://cdn.jsdelivr.net/npm/pdf-lib/dist/pdf-lib.js
https://cdn.jsdelivr.net/npm/pdf-lib/dist/pdf-lib.min.js

NOTE: if you are using the CDN scripts in production, you should include a specific version number in the URL, for example:

https://unpkg.com/[email protected]/dist/pdf-lib.min.js
https://cdn.jsdelivr.net/npm/[email protected]/dist/pdf-lib.min.js

Example:

<html>
  <head>
    <meta charset="utf-8" />
    <script src="https://unpkg.com/pdf-lib"></script>
  </head>

  <body>
    <div style="display: flex; width: 100%; height: 100%; flex-direction: column; overflow: hidden;">
        <iframe id="pdf" style="flex-grow: 1; border: none; margin: 0; padding: 0;"></iframe>
    </div>
  </body>
  <script type="text/javascript" src="https://unpkg.com/[email protected]/dist/pdf-lib.min.js"></script>
  <script>
    createPdf();
    async function createPdf() {
      const pdfDoc = await PDFLib.PDFDocument.create();
      const page = pdfDoc.addPage([350, 400]);
      page.moveTo(110, 200);
      page.drawText('Hello World!');
      const pdfDataUri = await pdfDoc.saveAsBase64({ dataUri: true
     });
      document.getElementById('pdf').src = pdfDataUri;
    }
  </script>
</html>

Answer from Lakshitha Kanchana on Stack Overflow

PDF-LIB

pdf-lib.js.org

PDF-LIB · Create and modify PDF documents in any JavaScript environment.

import { degrees, PDFDocument, rgb, StandardFonts } from 'pdf-lib'; async function modifyPdf() { const url = 'https://pdf-lib.js.org/assets/with_update_sections.pdf' const existingPdfBytes = await fetch(url).then(res => res.arrayBuffer()) const pdfDoc = await PDFDocument.load(existingPdfBytes) const helveticaFont = await pdfDoc.embedFont(StandardFonts.Helvetica) const pages = pdfDoc.getPages() const firstPage = pages[0] const { width, height } = firstPage.getSize() firstPage.drawText('This text was added with JavaScript!', { x: 5, y: height / 2 + 300, size: 50, font: helveticaFont, color: rgb(0.95, 0.1, 0.1), rotate: degrees(-45), }) const pdfBytes = await pdfDoc.save() }

API

Ƭ AppearanceMapping: object · Defined in api/form/appearances.ts:88

Help

Please take a look at our GitHub issues and see if your question has already been answered. If not, please create your own issue and we will respond as soon as possible!

GitHub

github.com › Hopding › pdf-lib

GitHub - Hopding/pdf-lib: Create and modify PDF documents in any JavaScript environment

How to use pdf-lib in AWS Lambdas - a tutorial written by Crespo Wang · Working With PDFs in Node.js Using pdf-lib - a tutorial by Valeri Karpov

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Videos

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