Extract One Page With The Same Phrase In Multiple PDFs

Does anyone know how to extract one page in multiple pdfs with the same phrase?
The page this phrase is on varies in each PDF. Which means we cant extract it by page number.

[[----Attached is the script I have to extract the first page of the PDF----]]

<</Commands [/c << /0 [/c << /Config [/c << /UIPolicy [/i 3]
>>]
/HandlerName [/a /JavaScript]
/Params [/c << /ScriptCode [/t (this.extractPages\({nStart:0, cPath: this.path.replace\("/.*\\/|\\.pdf$/ig", ""\)+"_P1"+".pdf"}\);\r\n)]
/ScriptName [/t ()]
>>]
/Title [/t (Execute JavaScript)]
>>]
>>]
/Input [/c << /FileVariation [/i 2]
/SourceFileOptions [/c <<>>]
>>]
/Output [/c << /AddToBaseName [/b false]
/Compatibility [/i 5]
/DontOverwrite [/b false]
/FileVariation [/i 2]
/InsertAfterBaseName [/t ()]
/InsertBeforeBaseName [/t ()]
/OptimizePDF [/b true]
/PDFOptimizerAcroscanQlty [/i 50]
/PDFOptimizerCCmprs [/b true]
/PDFOptimizerCCmprsFmt [/i 1]
/PDFOptimizerCCmprsQlty [/i 2]
/PDFOptimizerCSample [/b true]
/PDFOptimizerCSampleAbove [/i 225]
/PDFOptimizerCSampleAlgo [/i 2]
/PDFOptimizerCSampleRes [/i 150]
/PDFOptimizerCmprsFlate [/b true]
/PDFOptimizerCmprssFile [/i 1]
/PDFOptimizerDoAcroscan [/b false]
/PDFOptimizerFlattenDoc [/b false]
/PDFOptimizerGCmprs [/b true]
/PDFOptimizerGCmprsFmt [/i 1]
/PDFOptimizerGCmprsQlty [/i 2]
/PDFOptimizerGSample [/b true]
/PDFOptimizerGSampleAbove [/i 225]
/PDFOptimizerGSampleAlgo [/i 2]
/PDFOptimizerGSampleRes [/i 150]
/PDFOptimizerLZWToFlate [/b true]
/PDFOptimizerLinearize [/b true]
/PDFOptimizerMCmprs [/b true]
/PDFOptimizerMCmprsFmt [/i 2]
/PDFOptimizerMCmprsQlty [/i 0]
/PDFOptimizerMSample [/b true]
/PDFOptimizerMSampleAbove [/i 450]
/PDFOptimizerMSampleAlgo [/i 2]
/PDFOptimizerMSampleRes [/i 300]
/PDFOptimizerRmComments [/b false]
/PDFOptimizerRmEdge [/b false]
/PDFOptimizerRmExRefs [/b false]
/PDFOptimizerRmFormActions [/b false]
/PDFOptimizerRmImgAlts [/b true]
/PDFOptimizerRmInvLBs [/b true]
/PDFOptimizerRmJSActions [/b false]
/PDFOptimizerRmPieceInfo [/b false]
/PDFOptimizerRmStructure [/b false]
/PDFOptimizerRmThumbnails [/b false]
/PDFOptimizerRmUnusedNDs [/b true]
/RunPDFOptimizer [/b false]
>>]
>>