Replacing Text to Image for Google Document using Google Apps Script

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Replacing Text to Image for Google Document using Google Apps Script

This is a sample script for replacing text to image for Google Document using Google Apps Script (GAS). There is a method for replacing text to text at Class Text of DocumentApp. But there are not methods for replacing text to image. So I created this sample script.

Demo :

This sample image was created by k3-studio.

Usage :

replaceTextToImage(body, replaceText, image, width);

• body : body of document. You can set by DocumentApp.getActiveDocument().getBody() and DocumentApp.openById(documentId).getBody().
• replaceText : string you want to replace.
• image : blob of image you want to replace.
• width : Width of replaced image. The aspect ratio is constant. The unit is pixels. If you don't use this, the original size is used.

Script :

In this sample script, all strings of "sample" in the document are replaced to image with the file ID of imageFileId.

function myFunction() {
  var replaceTextToImage = function(body, searchText, image, width) {
    var next = body.findText(searchText);
    if (!next) return;
    var r = next.getElement();
    r.asText().setText("");
    var img = r.getParent().asParagraph().insertInlineImage(0, image);
    if (width && typeof width == "number") {
      var w = img.getWidth();
      var h = img.getHeight();
      img.setWidth(width);
      img.setHeight(width * h / w);
    }
    return next;
  };

  var documentId = "### Document ID ###";
  var replaceText = "sample";
  var imageFileId = "### File ID of image ###";
  var body = DocumentApp.openById(documentId).getBody();
  var image = DriveApp.getFileById(imageFileId).getBlob();
  do {
    var next = replaceTextToImage(body, replaceText, image, 200);
  } while (next);
}

References :

• replaceText()
• findText()
• setText()
• insertInlineImage()
• I have proposed this sample script at this thread.

Dear Tanaike-san
Thank you very much for your great work.
I am using the function to replace text in a header with an image.
For some reason the function does not just replace the search-text but all the text in the header element.
Is there a simple way to modify the function to just change the search-text and leave the rest of the header intact?
Thank you very much.
Martin

Is it possible to do something similar with Google Slides? I am trying to go through all slides in the deck and replace every instance of "Yes" text with a graphic, but am struggling. I assume you have to change DocumentApp to SlidesApp, and perhaps do something the getBody function which may not work the same way in a Slides presentation (given the separate text boxes, and of course the separate slides with each with its own ID).

---

function myFunction() {

var replaceTextToImage = function(body, searchText, image, width) {
var next = body.findText(searchText);
if (!next) return;
var r = next.getElement();
r.asText().setText("");
var img = r.getParent().asParagraph().insertInlineImage(0, image);
if (width && typeof width == "number") {
var w = img.getWidth();
var h = img.getHeight();
img.setWidth(width);
img.setHeight(width * h / w);
}
return next;
};

var documentId = "#####Google Slides ID / URL######";
var replaceText = "Yes";
var imageFileId = "#####Image ID / URL#####";
var body = SlidesApp.openById(documentId).getBody();
var image = DriveApp.getFileById(imageFileId).getBlob();
do {
var next = replaceTextToImage(body, replaceText, image, 200);
} while (next);

}

Hi ! Is it possible to replace only the triggered text, and not the entire line ?
I have loads of lines like this one to scan: actions.single_target=avatar,if=cooldown.colossus_smash.remains<8&gcd.remains=0
And only key words like avatar, colossus_smash, gcd need to be changed into image. But the script replaces the entire line
Kind regards !
Peter

Thank You Very Much for this big contribution.

Hi, would it be possible to replace a drawing instead of text?

Hi! I got this problem with my project.

"Exception: Unexpected error while getting the method or property getBlob on object DriveApp.File."

Document and image are both in my drive. I have tried that image as a png and jpg formats.

What is causing this problem? thanks!

Thank you very much. Spend time with GPT to finally get back to basics.