Other PDF Issues

How to Search Text Inside Multiple PDFs Across Folders and Subfolders

Elise Williams Oct 18, 2026 868 views

Question details

The user is looking for a way to perform a content search across multiple PDF files stored within specific folders and their subfolders.

How to Search Text Across PDF Files in Folders and Subfolders

Product: PDF Reader
Device & OS: not provided
Scenario: Trying to locate specific keywords or text strings inside numerous PDF documents organized in a nested directory structure without opening each file individually.
Observed behavior: The user needs a multi-file folder search capability, which may not be readily apparent or natively supported in their current PDF viewer.

Before you start

Ensure that the PDF files you are trying to search contain real text. If your PDFs are created from scanned images, you will need to process them with an OCR (Optical Character Recognition) tool before their contents can be searched.

Solution 1Recommended

Enable File Contents Search in Windows File Explorer

You can use the native Windows File Explorer to search for text across multiple PDFs within a specific folder and its subfolders without needing specialized PDF software.

Windows File Explorer has a built-in feature to index and search file contents, including PDFs, provided that the appropriate PDF iFilter is installed on your system (usually installed automatically with most standard PDF readers).

Open Windows File Explorer

Press Windows Key + E on your keyboard and navigate to the parent folder that contains the subfolders and PDF files you want to search.

Access Search Options

Click inside the search box located at the top-right corner of the File Explorer window. This will reveal the 'Search' tab on the top ribbon.

Enable File Contents Searching

In the Search ribbon, click on 'Advanced options' and ensure that 'File contents' is checked. This tells Windows to look inside the files rather than just searching file names.

Execute the Search

Type your target keyword or text phrase into the search box. Windows will now scan through all PDFs in the current folder and its subfolders to find matching text.

Enable File Contents Search in Windows File Explorer

Indexing Speed: Searching file contents can be slower than searching file names, especially in large directories. To speed this up, you can add your target folder to the Windows Search Index.

Solution 2

Submit a Feature Request for Your Specific PDF Reader

If your preferred PDF software lacks a native 'Find in Files' or multi-folder search feature, you can request the developers to add it in future updates.

Easily Manage, OCR, and Search PDF Files with WPS Office

WPS Office provides a comprehensive PDF toolkit that allows you to effortlessly view, edit, search, and organize your PDF documents. With built-in OCR technology, you can convert scanned images into searchable text, ensuring you never lose track of important information across your files.

1. Download and Install WPS Office: Visit the official WPS website, download the free version of WPS Office, and follow the on-screen instructions to install it on your device.
2. Open Your PDF Document: Launch the WPS PDF tool from the main WPS Office dashboard and open the specific PDF file you wish to search.
3. Perform OCR on Scanned Files: If your PDF is a scanned image, navigate to the 'Tools' tab and select 'OCR'. This will convert the image text into a fully searchable text format.
4. Search Within the Document: Press 'Ctrl + F' to open the search bar. Type in your target keyword or phrase to instantly locate all matching instances within the document.

All-in-one PDF reader and editor for fast document managementBuilt-in OCR tools to make scanned PDFs fully searchableHigh compatibility with all standard PDF files and corresponding Microsoft Office formatsLightweight, fast performance with a user-friendly tabbed interface

Frequently Asked Questions

Why can't I find specific text inside my PDF file even when I know it is there?

If you cannot search for text, the PDF is likely a scanned document or an image rather than a text-based file. You need to use an OCR (Optical Character Recognition) tool to extract the text and make the document searchable before performing your search.

Does Windows File Explorer search inside PDF files automatically?

Not always by default. To search inside PDF files using Windows File Explorer, you must have a PDF iFilter installed (which usually comes with standard PDF readers) and you must enable the 'File contents' search option under the 'Advanced options' menu in the Search tab.

How can I suggest a new search feature to my software provider?

Most standard software providers offer a dedicated 'Feature Request' or 'Bug Report' form on their official support websites or community forums. You can use these forms to suggest adding multi-folder search capabilities to future versions of their software.

PDF Troubleshooting