Wildcard search in PDF is a search for a string of text using a pattern in which some of the characters in the string are replaced with special characters representing zero, one or more arbitrary characters.
This online Wildcard search in PDF app allows you to search using the following wildcards:
A wildcard search example is the query "?in*", for which the application will find the following words in documents:
In this application, wildcards denote part of only one word. If you need to find a phrase consisting of several words, all words from a query in a PDF file, or any word from a query in a PDF file, then you must select the appropriate option under the query text box. In this case, each word of the query may contain wildcards, and the words are separated from each other by spaces.
The GroupDocs.Search full-text search engine, on which this application is based, allows you to specify wildcards in the query to search for strings of length from N to M, where N and M belong to the range from 0 to 255. This library also allows you to set the range of distances between words when searching phrases.
You can also perform wildcard search in many other file formats. Please see the full list below.