Hi td1137,
If the document is scanned pdf document, you may run OCR feature in Adobe Reader to make the text searchable. http://www.adobe.com/content/dam/Adobe/en/products/acrobat/pdfs/adobe-acrobat-xi-scan-pape r-to-pdf-and-apply-ocr-tutoria…
Then save the document and you may use Acrobat or Reader to search keyword in same pdf document.
How to create a searchable text document from a scanned page | Acrobat X Tips & Tricks | Adobe TV check how to make scanned document searchable.
Regards,
Ajlan Huda.