How to Search a PDF Index and Automatically Display Matching Pages
Question details
The user needs to search through a complex index within a large collection of scanned PDFs and have the search results automatically display and link to the exact corresponding pages.

- Product
- PDF Editors
- Device & OS
- not provided
- Scenario
- Searching across a large collection of scanned PDF documents using a cataloged index to quickly locate and open specific pages.
- Observed behavior
- The goal is to generate a results list from an index search that provides direct, clickable links to the matching occurrences within the indexed documents.
Ensure that all your scanned PDF documents have been processed with OCR (Optical Character Recognition) so that the text is fully searchable before attempting to search the index.
Run an Advanced Index Search on PDF Catalogs
Use the advanced search feature to search a pre-defined full-text index instead of running a basic search on individual files.
A full-text index is generated when a catalog of PDFs is defined. Searching this index produces a comprehensive results list with direct links to occurrences within the indexed documents, significantly speeding up large queries.
Open your PDF application and navigate to the Advanced Search tool, usually found under the Edit menu or by pressing Shift + Ctrl + F.
Click 'Show More Options' at the bottom of the search window. In the 'Look In' dropdown menu, choose 'Select Index'.
Check the box next to the specific index file (.pdx) associated with your PDF collection and click OK.
Enter your search terms and click Search. The results will populate as a list; simply click on any result to automatically display the corresponding matching page.

Apply OCR to Make Scanned PDFs Searchable
Before an index can accurately map to your document, all scanned images must be converted into searchable text.
Use WPS PDF to Quickly Process and Search Large Documents
WPS PDF offers robust Optical Character Recognition (OCR) and advanced search capabilities, allowing you to quickly scan large PDF collections and locate exact matches with ease.
- 1. Open PDF File: Launch WPS Office and open your scanned document in WPS PDF.
- 2. Apply OCR: Go to the 'Tools' tab and select 'OCR' to accurately convert your scanned images into searchable text.
- 3. Search Document: Press 'Ctrl + F' to bring up the search panel, enter your query, and easily click through the results to view matching pages.

Frequently Asked Questions
Why isn't my PDF index search finding any results?
If you are searching scanned documents, they must first undergo OCR (Optical Character Recognition). Without OCR, the search tool only sees the page as an image and cannot detect readable text.
What is a full-text PDF index?
A full-text index is a searchable catalog created across a collection of PDFs. It stores document content in a specialized database, allowing advanced search tools to find exact matches significantly faster than searching each file individually.
Can I link search results directly to specific pages?
Yes, when you search a cataloged index using the Advanced Search feature in your PDF software, the results list typically provides direct links. Clicking a specific result will automatically jump to that occurrence on the matching page.




