heavysixer / node-pptx Goto Github PK

Are you planning support for <a:t></a:t> text tags (Notes)?

What about animations? looking at powerpoint slide XML, it doesn't seem that compilcated.

I'm trying to load exisiting powerpoint and add some slide to him.
But when I save it, I get this stacktrace:

(node:10568) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'Relationships' of undefined at PptRelsFactory.addPresentationToSlideRelationship (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\factories\ppt\rels.js:24:56) at PptFactory.addSlide (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\factories\ppt\index.js:64:80) at PowerPointFactory.addSlide (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\factories\index.js:127:52) at Presentation.addSlide (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\presentation.js:112:45) at D:\development\sprint-reviewer\index.js:71:18 at Composer.compose (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\composer.js:20:15) at createPptx (D:\development\sprint-reviewer\index.js:65:10) at D:\development\sprint-reviewer\index.js:42:5 at processTicksAndRejections (internal/process/task_queues.js:85:5) (node:10568) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1) (node:10568) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code. (node:10568) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'Relationships' of undefined at PptRelsFactory.addPresentationToSlideRelationship (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\factories\ppt\rels.js:24:56) at PptFactory.addSlide (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\factories\ppt\index.js:64:80) at PowerPointFactory.addSlide (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\factories\index.js:127:52) at Presentation.addSlide (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\presentation.js:112:45) at D:\development\sprint-reviewer\index.js:83:14 at Composer.compose (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\composer.js:20:15) at createPptx (D:\development\sprint-reviewer\index.js:65:10) at D:\development\sprint-reviewer\index.js:42:5 at processTicksAndRejections (internal/process/task_queues.js:85:5) (node:10568) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2) (node:10568) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'Types' of undefined at ContentTypeFactory.addDefaultContentType (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\factories\content-types.js:29:44) at ContentTypeFactory.addDefaultMediaContentTypes (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\factories\content-types.js:21:14) at PowerPointFactory.addDefaultMediaContentTypes (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\factories\index.js:241:33) at Presentation.save (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\presentation.js:163:32) at Composer.save (D:\development\sprint-reviewer\node_modules\nodejs-pptx\lib\composer.js:25:33) at createPptx (D:\development\sprint-reviewer\index.js:91:10) at D:\development\sprint-reviewer\index.js:42:5 at processTicksAndRejections (internal/process/task_queues.js:85:5) (node:10568) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 4)

Hello! I would like to see this project support typescript. I would also love to start doing it myself. Let me know if it's ok to start a PR for this

Hi @heavysixer what's the status of this project? Is it abandoned? If so, is there any official successor?

I am trying to remove slide from my presentation using code

`const PPTX = require('nodejs-pptx');
let pptx = new PPTX.Composer();

async function load() {
await pptx.load('/app/go/src/ppt2svgconverter/Node-PPTX/hello-world.pptx'); // load a pre-existing PPTX
}

async function removeSlide() {
await pptx.compose(pres => {
pres.removeSlide(pres.getSlide("slide1")); // remove the first slide from the PPTX
// OR ---> pres.removeSlide(pres.getSlide(1)); <--- example of getting a slide by intege
});
}
load();
removeSlide();`

But getting error like node:10115) UnhandledPromiseRejectionWarning: Error: Invalid slide name in Presentation.getSlide(): slide1

PPT I used is attached here
hello-world.pptx

Hi!
i would like to load a pptx file from http request. I have thought that the fastest way for doing it is to load it througth buffer.
right now i'm ussing the version 1.0.1

Hello,
Is it possible to duplicate a slide?

Hi! 👋

Firstly, thanks for your work on this project! 🙂

Today I used patch-package to patch [email protected] for the project I'm working on.

Here is the diff that solved my problem:

diff --git a/node_modules/nodejs-pptx/lib/factories/index.js b/node_modules/nodejs-pptx/lib/factories/index.js
index 9d96aa5..3932925 100644
--- a/node_modules/nodejs-pptx/lib/factories/index.js
+++ b/node_modules/nodejs-pptx/lib/factories/index.js
@@ -39,7 +39,7 @@ class PowerPointFactory {
         await zip.loadAsync(data);
 
         for (let key in zip.files) {
-            if (zip.files.hasOwnProperty(key)) {
+            if (Object.prototype.hasOwnProperty.call(zip.files, key)) {
                 let ext = key.substr(key.lastIndexOf('.'));
 
                 if (ext === '.xml' || ext === '.rels') {

This issue body was partially generated by patch-package.

Guys,

Does this library support adding tables? If not, is there a way to use
https://github.com/gitbrent/PptxGenJS/
to create a slide and add it using node-pptx?

I tried something like

const PPTX = require('nodejs-pptx');
let pptx = new PPTX.Composer();
const fs = require('fs');
const pptxgenjs  =  require("pptxgenjs");
let pres = new pptxgenjs();

let slide = pres.addSlide();
slide.bkgd = '#39006A';
slide.addText('rajat');
async function init() {
    await pptx.load(`./existing.pptx`);
    await pptx.compose(async pres => {
        pres.addSlide(slide);
        fs.writeFile('helloworlds.xml',await pres.getSlide('slide1'), function (err) {
            if (err) return console.log(err);
        });
    });
    await pptx.save(`./existing1.pptx`);
}
init();

but have been unsuccessful so far.
I get UnhandledPromiseRejectionWarning: TypeError: config is not a function

looking at the NPM packages I can see the following :

but github shows a latest version of 2021.

Can I suggest pushing out the updates to NPM, or updating the installation instructions to load the release from Github?

When I remove the slides from a presentation of size 10MB with 5 slides, the resulting presentation is also 10MB. Even after removing 4 of the 5 slides, its still 10MB.

const PPTX = require('node-pptx');
let pptx = new PPTX.Composer();

await pptx.load('./sample.pptx')
await pptx.compose(async pres => {
  pres.removeSlide(pres.getSlide('slide1')); 
  

});
await pptx.save('./test.pptx');

It would be nice if the size decreased with reducing slides. Please correct me if I'm making a mistake.
And is there a way to ADD slides from existing presentation to another presentation.
Something like this...

slide1=pres1.getSlide('slide1')
pres2.addSlide(slide1)

Is there any way to use this library in typescript?

Is it possible to merge two pptx files?

I have a template pptx that I need to generate copies of by swapping data in and out of it. Is it possible to reference a specific text box? Even a plain getElements() would be great! Any insight on this?

Thank you, the package is awesome!

Hi! Is it possible to center an image horizontally in the slide?

Is it possible to do transitions between slides?
And also change the Advance from mouse to time base?

Hey,
I've been using the library for a week now, so far I haven't had any problems and a really good library!
I encountered the first problem when trying to add an image that will serve as a background to the text and I can't do it.
I manage to add text over text and add image over image.
But I can't add text over a picture.
I tried to create the image first and then the text and vice versa, but always the image is before the text. Am I missing something? Or is there really a problem with that?
Maybe there is another way to do it?
Many thanks in advance,

Example to my code:

slide.addText(text => {
        text
            .value("text")
            .textColor("ffffff")
            .backgroundColor("000000")
            .x(0)
            .cx(SlideSettings.headerSettings.width)
            .y(0)
            .cy(SlideSettings.headerSettings.height)
            .textVerticalAlign("center")
            .textAlign("center");
    });

  // Add background image
   slide.addImage(image => {
        image
            .data(base64_encode(`D:/projects/PowerPoint generator/Public/Images/Gradiant3.png`))
            .x(0)
            .cx(SlideSettings.headerSettings.width)
            .y(-2)
            .cy(SlideSettings.headerSettings.height + 5);
    });

    // Add tag image
    slide.addImage(image => {
        image
            .data(base64_encode('D:/projects/PowerPoint generator/Public/Images/a_tag.png'))
            .x(0)
            .cx(SlideSettings.tagSettings.width)
            .y(-2)
            .cy(SlideSettings.tagSettings.height);
    });

    // Add tag image
    slide.addImage(image => {
        image
            .data(base64_encode('D:/projects/PowerPoint generator/Public/Images/b_tag.png'))
            .x(SlideSettings.headerSettings.width - SlideSettings.tagSettings.width - 10)
            .cx(SlideSettings.tagSettings.width)
            .y(5)
            .cy(SlideSettings.tagSettings.height);
    });

Ron

Hi - I am new to Node JS and wanted to create a PPT with bullet points using node-pptx.
Could you please add examples for bullet points example or let me know how to do it?

how can I edit text, images and other elements of a slide?

Would be nice generate an image, in png or even pdf from an entire pttx or only selected slides.

when i folow examples , i have some issues that ' i cant use await becuz it can be used only in async function' but i saw that node-pptx is sync funtion,,,
so how can i use await like you used in examples??

Is there a way to copy an existing slide into a new slide?

Something like:

pres.copySlide(pres.getSlide(3))

Hi! 👋

Firstly, thanks for your work on this project! 🙂

Today I used patch-package to patch [email protected] for the project I'm working on.

Here is the diff that solved my problem:

diff --git a/node_modules/nodejs-pptx/lib/factories/index.js b/node_modules/nodejs-pptx/lib/factories/index.js
index 7809e88..15b7b82 100644
--- a/node_modules/nodejs-pptx/lib/factories/index.js
+++ b/node_modules/nodejs-pptx/lib/factories/index.js
@@ -199,11 +199,11 @@ class PowerPointFactory {
         }
     }
 
-    addImage(slide, image) {
-        image.setContent(this.pptFactory.addImage(slide, image));
+    addImage(slide, image, name) {
+        image.setContent(this.pptFactory.addImage(slide, image, name));
     }
 
-    async addImageFromRemoteUrl(slide, image) {
+    async addImageFromRemoteUrl(slide, image, name) {
         image.source = await new Promise(function(resolve, reject) {
             request.get(image.downloadUrl, { timeout: 30000 }, function(err, res, buffer) {
                 if (err) reject(err);
@@ -211,7 +211,7 @@ class PowerPointFactory {
             });
         });
 
-        return this.addImage(slide, image);
+        return this.addImage(slide, image, name);
     }
 
     addText(slide, textBox) {
diff --git a/node_modules/nodejs-pptx/lib/factories/ppt/index.js b/node_modules/nodejs-pptx/lib/factories/ppt/index.js
index 9652f45..4796637 100644
--- a/node_modules/nodejs-pptx/lib/factories/ppt/index.js
+++ b/node_modules/nodejs-pptx/lib/factories/ppt/index.js
@@ -74,21 +74,21 @@ class PptFactory {
         this.slideFactory.moveSlide(sourceSlideNum, destinationSlideNum);
     }
 
-    addImage(slide, image) {
+    addImage(slide, image, name = uuidv4()) {
         let mediaName = '';
         let source = image.source;
 
         if (image.sourceType === 'file') {
-            mediaName = `image-${uuidv4()}${path.extname(source)}`;
+            mediaName = `${name}${path.extname(source)}`;
         } else if (image.sourceType === 'base64') {
             let imageExt = 'png'; // assume png unless otherwise specified
 
             if (source && /image\/(\w+);/.exec(source) && /image\/(\w+);/.exec(source).length > 0) imageExt = /image\/(\w+);/.exec(source)[1];
             if (source.indexOf(';') > -1) source = source.split(';').pop();
 
-            mediaName = `image-${uuidv4()}.${imageExt}`;
+            mediaName = `${name}.${imageExt}`;
         } else if (image.sourceType === 'url') {
-            mediaName = `image-${uuidv4()}${path.extname(image.downloadUrl)}`;
+            mediaName = `${name}${path.extname(image.downloadUrl)}`;
         } else {
             throw new Error('Invalid "sourceType" specified in PptFactory.addImage(). Possible values: "base64," "file," or "binary."');
         }
diff --git a/node_modules/nodejs-pptx/lib/slide.js b/node_modules/nodejs-pptx/lib/slide.js
index b5c93f0..98870e5 100644
--- a/node_modules/nodejs-pptx/lib/slide.js
+++ b/node_modules/nodejs-pptx/lib/slide.js
@@ -56,7 +56,7 @@ class Slide {
         }
     }
 
-    async addImage(config) {
+    async addImage(config, name) {
         let image = new Image();
 
         try {
@@ -67,9 +67,9 @@ class Slide {
 
         try {
             if (image.sourceType === 'file' || image.sourceType === 'base64') {
-                this.powerPointFactory.addImage(this, image);
+                this.powerPointFactory.addImage(this, image, name);
             } else if (image.sourceType === 'url') {
-                await this.powerPointFactory.addImageFromRemoteUrl(this, image);
+                await this.powerPointFactory.addImageFromRemoteUrl(this, image, name);
             }
 
             this.elements.push(image);

This issue body was partially generated by patch-package.

I have a presentation with a lot of variable placeholders that look like this: {some_variable}

I'd like to find those and replace them with the proper values (from a JSON file). I'm doing this now with docxtemplater, but I'd rather use node-pptx.

In addition, I'd like to search the presentation for the remaining instances of a variable that were not filled in - this is an indication that there's no data for that slide and it should be removed. I'd like to search for, say, "{remove_slide}" and remove that slide. I could do it with a list of slides containing that variable, then I'd sort it in descending order, then use node-pptx to delete the slides. Sorting the list descending seems like the proper path so you don't screw up the slide ordering while you're deleting slides. Maybe there's a simpler way.

First of all, thank you for your very helpful library !

I ran into the following problem:
In the file node-pptx/lib/factories/ppt/index.js line 5 a deep requires is used for the uuid library :
const uuidv4 = require('uuid/v4');
According to their page this is deprecated and no longer supported: https://github.com/uuidjs/uuid#deep-requires-no-longer-supported

Therefore the following error is thrown in my project: Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './v4' is not defined by "exports" in .../node_modules/uuid/package.json

we have requirement to read ppt and save all slides as image

I've got an existing set of slides which have a couple of charts and a couple of tables on them. I'd like to be able to update the Excel data which sits behind the charts, is that possible? I couldn't see a getChart function.

I'd like to update the data in the tables too. The tables aren't Excel as far as I know, they're just PowerPoint's 'Insert Table' tables. I don't mind tidying the slide up manually if there gets to be too many rows, but I'd like to be able to start with what I've created within PowerPoint, rather than having to recreate it all from scratch.

I'm trying to figure out how to position the text using the x and y values

await pres.getSlide('slide3')
            .addText(text => {
                text.value('val')
                    .x(10)
                    .y(50)
            })

Is there a way by which I can know exactly what values to pass for x and y? For example, by opening an existing ppt and getting the position of a similar element and then passing those values in the function.
Or do I have to do this by trial and error?

I notice textboxes all come in the same size, can I set the height and width as needed? I see the constructor for Textbox has cx and cy but no props to override it?

Hey,

is there a possibility to apply a slide master?
In my case, I have an existing .pptx-file and I want to change the slide master of an added slide (considering there is more than one slide master).

Hi all, thanks all for creating and maintaining this package.

I am trying to create an electron app that creates a pptx file via nodejs. I have added a dependency to this package and trying to run it, but whenever I try to import an existing pptx file, it throws below error [1], which seems like coming from this line [2]. I have listed below how to reproduce this error. Please let me know if there's anything I am missing or you need anything else to debug. Thank you so much!

[1]

(node:34950) UnhandledPromiseRejectionWarning: Error: ENOENT: no such file or directory, open '/Users/dongkyukim/workplace/hymn-lyrics-ppt-app/packages/electron-app/dist-electron/../fragments/[Content_Types].xml'
    at Object.openSync (node:fs:601:3)
    at Object.func [as openSync] (node:electron/js2c/asar_bundle:2:1869)
    at Object.readFileSync (node:fs:469:35)
    at Object.readFileSync (node:electron/js2c/asar_bundle:2:9212)
    at ContentTypeFactory.build (/Users/dongkyukim/workplace/hymn-lyrics-ppt-app/packages/electron-app/dist-electron/main.js:197426:31)
    at PowerPointFactory.build (/Users/dongkyukim/workplace/hymn-lyrics-ppt-app/packages/electron-app/dist-electron/main.js:204005:29)
    at new PowerPointFactory (/Users/dongkyukim/workplace/hymn-lyrics-ppt-app/packages/electron-app/dist-electron/main.js:203972:10)
    at new Presentation (/Users/dongkyukim/workplace/hymn-lyrics-ppt-app/packages/electron-app/dist-electron/main.js:204163:30)
    at new Composer (/Users/dongkyukim/workplace/hymn-lyrics-ppt-app/packages/electron-app/dist-electron/main.js:204292:25)
    at generatePPTX (/Users/dongkyukim/workplace/hymn-lyrics-ppt-app/packages/electron-app/dist-electron/main.js:205722:15)
    at /Users/dongkyukim/workplace/hymn-lyrics-ppt-app/packages/electron-app/dist-electron/main.js:205781:3
    at WebContents.<anonymous> (node:electron/js2c/browser_init:2:89468)
    at WebContents.emit (node:events:513:28)

[2]

How to reproduce

1. git clone https://github.com/dongkyu9315/hymn-lyrics-ppt-app.git
2. cd hymn-lyrics-ppt-app
3. yarn run dev:all (this will start an electron app)
4. Click the Trigger convert button and you will see an error

i want to replace all *cross with actual value coming from REST API, can we do this?
from documentation i could see to add new element
await pres.getSlide('slide1').addImage(image => {
image
.file(./images/pizza.jpg)
.x(500)
.y(100)
.cx(166)
.cy(100);
});

Consider the following line of code, i believe that this.content will be already assigned the values of args.content due to the Object.assign statement above.

TypeError: zip.files.hasOwnProperty is not a function
at PowerPointFactory.loadFromRawFileData (node_modules/nodejs-pptx/lib/factories/index.js:42:27)
at runMicrotasks ()
at processTicksAndRejections (internal/process/task_queues.js:95:5)
at async Presentation.loadExistingPPTX (node_modules/nodejs-pptx/lib/presentation.js:99:13)
at async Composer.load (node_modules/nodejs-pptx/lib/composer.js:15:9)

Is there a way to merge selected slides from two different decks using node-pptx?

I got this error while installing it.

Error: Can't find Python executable "python", you can set the PYTHON env variable.

.. I tried few things like i tried to set python env variables but no use.

Please suggest a fix.

是否支持插入表格？

test code

  let pptx = new PPTX.Composer()
  await pptx.load(__dirname + '/../../templates/test.pptx')
  const tmpPPTX = '/tmp/worship' + Math.random() + '.pptx'  
  await pptx.save(tmpPPTX)

In the test.pptx, I have a slide which has two lines as its tile.

first line
second line

but the saved ppt always rendered to 1 line

first line second line

I looked into the codes, we are using
xml2js.parseString to parse xml string to js obj.
and use xml2js.Builder to save js obj back to xml string

with below code, we can easily reproduce the issue:

let xml = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?><a:p><a:pPr marL="0" lvl="0" indent="0" algn="ctr" rtl="0"><a:spcBef><a:spcPts val="0"/></a:spcBef><a:spcAft><a:spcPts val="0"/></a:spcAft><a:buClr><a:schemeClr val="dk1"/></a:buClr><a:buSzPts val="1100"/><a:buFont typeface="Arial"/><a:buNone/></a:pPr><a:r><a:rPr lang="ja-JP" altLang="en-US"/><a:t>first line</a:t></a:r><a:br><a:rPr lang="en-CA" altLang="ja-JP" dirty="0"/></a:br><a:r><a:rPr lang="ja-JP" altLang="en-US"/><a:t>second line</a:t></a:r><a:endParaRPr lang="ja-JP" altLang="en-US" dirty="0"/></a:p>'

  xml2js.parseString(xml, function(err, js) {
    let builder = new xml2js.Builder({ renderOpts: { pretty: false } });
    let savexml = builder.buildObject(js);
    console.log(xml)
    console.log(savexml)
    console.log(xml === savexml)
  });

The output is:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?><a:p><a:pPr marL="0" lvl="0" indent="0" algn="ctr" rtl="0"><a:spcBef><a:spcPts val="0"/></a:spcBef><a:spcAft><a:spcPts val="0"/></a:spcAft><a:buClr><a:schemeClr val="dk1"/></a:buClr><a:buSzPts val="1100"/><a:buFont typeface="Arial"/><a:buNone/></a:pPr><a:r><a:rPr lang="ja-JP" altLang="en-US"/><a:t>first line</a:t></a:r><a:br><a:rPr lang="en-CA" altLang="ja-JP" dirty="0"/></a:br><a:r><a:rPr lang="ja-JP" altLang="en-US"/><a:t>second line</a:t></a:r><a:endParaRPr lang="ja-JP" altLang="en-US" dirty="0"/></a:p>
<?xml version="1.0" encoding="UTF-8" standalone="yes"?><a:p><a:pPr marL="0" lvl="0" indent="0" algn="ctr" rtl="0"><a:spcBef><a:spcPts val="0"/></a:spcBef><a:spcAft><a:spcPts val="0"/></a:spcAft><a:buClr><a:schemeClr val="dk1"/></a:buClr><a:buSzPts val="1100"/><a:buFont typeface="Arial"/><a:buNone/></a:pPr><a:r><a:rPr lang="ja-JP" altLang="en-US"/><a:t>first line</a:t></a:r><a:r><a:rPr lang="ja-JP" altLang="en-US"/><a:t>second line</a:t></a:r><a:br><a:rPr lang="en-CA" altLang="ja-JP" dirty="0"/></a:br><a:endParaRPr lang="ja-JP" altLang="en-US" dirty="0"/></a:p>
false

As you can see in the output, the break line node <a:br> was saved after the two lines <a:r> rather than between them.
That is the reason why multi line was saved into 1 line.

npm i nodejs-pptx doesn't seem to install all the correct files. Right now I see index.js, the license file, package.json, and readme.md.
Can you please check/fix this? Thank you!

Image is already a defined class within JavaScript (at least in the browser environment.) To prevent confusion I think we should refactor this name like we did the Text class.

Additionally, the addImage and addSlide methods are confusing in terms of their responsibilities. I'd assume that if you created an Image you would not call addImage on an image...

Issue with loading PowerPoint file from buffer

The save() method allows you to specify either a callback (passing buffer) or file path, but when loading a PowerPoint file, you must pass a file path. This can be pretty inconvenient in cases where you already have the PowerPoint file contents in a buffer.

Proposed solution

To address this issue, can we please add support for loading from a buffer as well as a file path.

I've quickly scanned your code, and at first glance it looks like it's as simple as changing loadExistingPPTX() :

async loadExistingPPTX(done) {
    // Throw an error if templateFilePath is null or undefined
    if (!this.templateFilePath) {
        throw new Error('Input is null or undefined. Input must be a file path or buffer.');
    }

    try {
        // Check if templateFilePath is a string (file path)
        if (typeof this.templateFilePath === 'string') {
            // Load PowerPoint file from the specified file path using fs.readFileSync()
            await this.powerPointFactory.loadFromRawFileData(fs.readFileSync(this.templateFilePath));
        }
        // Check if templateFilePath is a buffer
        else if (Buffer.isBuffer(this.templateFilePath)) {
            // Load PowerPoint file from the buffer directly using powerPointFactory.loadFromRawFileData()
            await this.powerPointFactory.loadFromRawFileData(this.templateFilePath);
        }
        // If templateFilePath is neither a string nor a buffer, throw an error
        else {
            throw new Error('Invalid input type. Input must be a file path or buffer.');
        }
    } catch (error) {
        // Catch any errors that occur during loading and rethrow with a more descriptive message
        throw new Error(`Error loading PPTX file: ${error.message}`);
    }
}

Obviously we'd also need to change the variable name to templateFile or similar and any other housekeeping as needed.

Would you accept a PR from me along these lines to add this feature?

How can one extract just the presenter notes?
The solution which I'm using is this:

// const fs = require("fs");
const PPTX2Json = require("pptx2json");
const pptx2json = new PPTX2Json();

pptx2json.toJson("./test.pptx").then((json) => {
  json = Object.keys(json)
    .filter((key) => key.includes("ppt/notesSlides/notesSlide"))
    .sort((a, b) => a - b)
    .map((key) =>
      json[key]["p:notes"]["p:cSld"][0]["p:spTree"][0]["p:sp"]
        .filter((item) => item["p:txBody"])
        .map((item) => item["p:txBody"][0]["a:p"])
        .map((item) => item.map((item) => item["a:r"]))[0]
        .filter((x) => x)
        .map((item) => [
          ...item.reduce((prev, curr) => [...prev, curr["a:t"]], []),
        ])
        .join(" ")
    );
  console.log(json);
  // fs.writeFileSync("./data.txt", JSON.stringify(json));
});

Hello - I'm running into this error when the node function is being called from a next.js runtime. My file/function works fine when calling directly from node, but it appears to fail to load based on a file path:

• error unhandledRejection: Error: ENOENT: no such file or directory, open '/Users/username/dev/app/.next/server/app/api/endpoint/../fragments/[Content_Types].xml'

It seems like the next.js runtime is a different path than the node_modules or the Content_Types.xml. I have tried putting the fragments directory in public and fetching the file, i have tried absolute paths, I'm not sure why it's not working when being called by the API. I found the reference in this file which could be causing the issue:

node-pptx/fragments/[Content_Types].xml

    build() {
        xml2js.parseString(fs.readFileSync(`${__dirname}/../fragments/[Content_Types].xml`), (err, js) => {
            this.content['[Content_Types].xml'] = js;
        });

        this.addDefaultMediaContentTypes();
    }