How to Create a Non-Searchable PDF File

When you create a PDF file from most applications, the result is a PDF that contains both text and images. The text can be searched from PDF viewers like Adobe Reader, can be cut & pasted into other documents, and it can also be indexed and searched by search engines like Google or Bing.

However, some people want to create PDF files that are NOT searchable for a variety of reasons.

We posted an example some time ago where some sensitive documents were redacted in the PDF, and even though they displayed correctly (where the text appeared blacked-out), the actual text in the PDF file was searchable and selectable. Whoops!

There are also situations where lawyers litigating cases need to share documents with the opposing side, and they have an interest in dumbing down the PDF file. That is, making it very difficult to search through the documents.

Whatever the reason, the easiest way to create non-searchable PDF files is to use the PDF Image Only file save option with Win2PDF. This will save all text in the document being printed as an image, so that it can’t be searched or indexed by search engines. You can save the output as either a monochrome image, or a color image depending on your needs.

One caveat with this feature is that it will make the file sizes larger, which is usually not desirable.

Unless, that is, you’re a lawyer litigating a case…