How to find the first page number of multiple pdf files

If the PDFs have a searchable text layer (even after running OCR using Enhance Scans > Recognize Text in Acrobat), then a JavaScript run via an Action Wizard or folder-level script could be used to:

1. Open each PDF,
2. Read the text content of the first page,
3. Extract a number or label from it,
4. Use that to rename the file (or save as a new file name).

If you’re working with multiple PDF files and want to rename them based on the first page number, this is possible only if the files contain searchable text (i.e., not scanned images without OCR). Adobe Acrobat can’t detect visible page numbers on image-based PDFs unless OCR (Text Recognition) has been applied.

I can't provide JavaScript for the use case. 

Here is an example of Acrobat JavaScript (for non-scanned PDFs)

var firstPageText = this.getPageNthWord(0, 0); // Gets the first word on the first page

if (firstPageText !== "") {

    var newName = firstPageText + ".pdf";

    this.saveAs("/C/temp/" + newName); // Save renamed copy to desired folder

}

Note: This code assumes the first word on page 1 is the page number or useful for naming. It can be expanded to look for multiple words or specific patterns.

How to Use the Script (in Acrobat Pro):

1. Open Acrobat Pro DC.
2. Go to Tools > Action Wizard > New Action.
3. Add the JavaScript command.
4. Add a Save step.
5. Choose the input files or folder.
6. Run the Action.

For scanned files, use Scan & OCR > Recognize Text on each document first to ensure the content is readable by scripts.

⚠️ Disclaimer: While Acrobat supports JavaScript, Adobe does not provide official support or validation for custom scripts. These are implemented at the user’s discretion.

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