> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/web/get-started/samples/contentreplacertest.md). # Replace Text, Image, and String - Sample Code Sample JavaScript code to use Apryse SDK for searching and replacing text strings and images inside existing PDF files (e.g. business cards and other PDF templates). Unlike PDF forms, the ContentRepla {% hint style="info" %} **Requirements** *These packages are required to use these features in production. Trial keys have unlimited access to all features* Web SDKFull API {% endhint %} Sample JavaScript code to use Apryse SDK for searching and replacing text strings and images inside existing PDF files (e.g. business cards and other PDF templates). Unlike PDF forms, the ContentReplacer works on actual PDF content and is not limited to static rectangular annotation regions. Learn more about our [Web SDK](/web/get-started/guides.md) and [PDF Editing & Manipulation Library](/core/page-manipulation/manipulation.md). ### **Implementation steps** Step 1: [Get started with WebViewer](/web/get-started/readme.md) in your preferred web stack Step 2: [Enable the full API](/web/full-api/full-api-overview.md) Step 3: Add the sample code provided in this guide This full sample is one of many included in the [manual download of WebViewer.](/web/get-started/manually.md#1-download-webviewer) 
//---------------------------------------------------------------------------------------
// Copyright (c) 2001-2023 by Apryse Software Inc. All Rights Reserved.
// Consult legal.txt regarding legal and license information.
//---------------------------------------------------------------------------------------

(exports => {
  
  exports.runContentReplacer = () => {
    const PDFNet = exports.Core.PDFNet;

    const main = async () => {
      try {
        const inputUrl = '../TestFiles/';
        const inputFilename = 'BusinessCardTemplate.pdf';
        const outputFilename = 'BusinessCard.pdf';

        const doc = await PDFNet.PDFDoc.createFromURL(inputUrl + inputFilename);
        doc.initSecurityHandler();
        doc.lock();

        const replacer = await PDFNet.ContentReplacer.create();
        const page = await doc.getPage(1);
        const img = await PDFNet.Image.createFromURL(doc, inputUrl + 'peppers.jpg');

        const region = await page.getMediaBox();
        const replace = await img.getSDFObj();
        await replacer.addImage(region, replace);
        await replacer.addString('NAME', 'John Smith');
        await replacer.addString('QUALIFICATIONS', 'Philosophy Doctor');
        await replacer.addString('JOB_TITLE', 'Software Developer');
        await replacer.addString('ADDRESS_LINE1', '#100 123 Software Rd');
        await replacer.addString('ADDRESS_LINE2', 'Vancouver, BC');
        await replacer.addString('PHONE_OFFICE', '604-730-8989');
        await replacer.addString('PHONE_MOBILE', '604-765-4321');
        await replacer.addString('EMAIL', 'info@pdftron.com');
        await replacer.addString('WEBSITE_URL', 'http://www.pdftron.com');
        await replacer.process(page);

        const docbuf = await doc.saveMemoryBuffer(PDFNet.SDFDoc.SaveOptions.e_remove_unused);
        saveBufferAsPDFDoc(docbuf, outputFilename);

        console.log('Done. Result saved in ' + outputFilename);
      } catch (err) {
        console.log(err);
      }
      try {
        const inputUrl = '../TestFiles/';
        const inputFilename = 'newsletter.pdf';
        const outputFilename = 'ContentReplaced.pdf';

        const doc = await PDFNet.PDFDoc.createFromURL(inputUrl + inputFilename);
        doc.initSecurityHandler();
        doc.lock();

        const replacer = await PDFNet.ContentReplacer.create();
        const page = await doc.getPage(1);
        const region = await page.getMediaBox();
        await replacer.addText(region, 'The quick onyx goblin jumps over the lazy dwarf');
        await replacer.process(page);

        const docbuf = await doc.saveMemoryBuffer(PDFNet.SDFDoc.SaveOptions.e_remove_unused);
        saveBufferAsPDFDoc(docbuf, outputFilename);

        console.log('Done. Result saved in ' + outputFilename);
        console.log('Done.');
      } catch (err) {
        console.log(err);
      }
    };
    // add your own license key as the second parameter, e.g. PDFNet.runWithCleanup(main, 'visitor.claims.wvKey || "YOUR_LICENSE_KEY"')
    PDFNet.runWithCleanup(main);
  };
})(window);
// eslint-disable-next-line spaced-comment
//# sourceURL=ContentReplacerTest.js
--- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.apryse.com/web/get-started/samples/contentreplacertest.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.