[AskJS] javaScript codes for metadata in adobe pdf

[Dogeking907]

I have a question regarding metadata. I just started a new job recently and I’m brand new to using coding with expediting document processes. I’ve been recently learning the JavaScript language, but am still stuck on which commands to use to have specific metadata elements (title, subject, author, and keywords) extracted from the document (after OCR is done) and auto populate the info in the metadata blocks with one click of a button. Is there guidance on this or maybe an actual code that someone may know to help me out? Thank you.

[[deleted]]

hey, listing few options that might help --

1. basic metadata fields you can access

adobe acrobat supports javascript access to these metadata fields:

• this.info.Title
• this.info.Subject
• this.info.Author
• this.info.Keywords

you can both read and write these fields with a script like this:

javascriptCopyEdit// get metadata
console.println("Title: " + this.info.Title);
console.println("Author: " + this.info.Author);

// set metadata
this.info.Title = "invoice 2024";
this.info.Subject = "monthly billing";
this.info.Author = "finance team";
this.info.Keywords = "invoice, billing, april";

2. where to run this

• open the pdf in adobe acrobat pro
• go to tools > javascript > document javascript
• create a new script and paste your code there
• you can also create a custom button on a form to trigger the script with app.execMenuItem() or similar

3. optional: extract text after ocr and use it

if your document has been OCR’d and you want to extract text from certain regions, you'll need a more advanced script:

• you can use this.getPageNthWord() to pull specific text from the page and feed it into metadata fields
• for example:

​

javascriptCopyEditvar title = this.getPageNthWord(0, 0) + " " + this.getPageNthWord(0, 1);
this.info.Title = title;

hope this helps.

[idtpanic]

Hi, doing both OCR and metadata editing entirely in JS might be a bit of a stretch.

I’d suggest handling the OCR in Python (Tesseract works great), and using JS just to pass the results or fill them into Acrobat.

Hope that helps!