Guides · for everyone · updated August 2026
How to search inside PDFs on Windows: all of them at once.
You don't have to open PDFs one by one and Ctrl+F each of them. Interlinked Files indexes the text inside every PDF on your computer (statements, contracts, manuals, scans with text layers) and searches all of them at once, in milliseconds.
Why this is normally hard
Windows Search only reads PDF text in its indexed locations (mostly your Documents library) and quietly skips everything else: the Downloads folder, archive drives, exports from your bank or accountant. So the honest answer to “why can't I find that phrase?” is usually the file was never indexed at all.
What the fix looks like
Install once, index everything
After install, Interlinked Files builds one index of every file on the machine: every drive, every folder, no locations to configure. PDF text is part of that index from the start.
Type the phrase, get the file
Search any words you remember: “net 30”, a case number, a person's name. Every PDF containing them appears instantly, with the matching line shown so you can tell them apart before opening anything.
It stays current by itself
Save a new PDF and it's searchable about a second later. There's no re-scan button and no scheduled crawl. The index rides the file system's own change stream.
Common questions
Can Windows search inside PDF files?
Sometimes, partially. Windows Search can read PDF text only in indexed locations and with the right filter installed, and it routinely misses PDFs stored outside your libraries. In practice, most people's PDFs (downloads, exports, archives on a second drive) are invisible to it.
How do I search all my PDFs at once instead of one at a time?
Use an indexed whole-machine search. Interlinked Files reads the text of every PDF on the computer once, keeps that index fresh automatically, and then answers any phrase search across all of them in milliseconds: no opening files, no per-folder searches.
How fast is it compared to opening PDFs manually?
A whole-machine content search typically answers in about 8 milliseconds. Checking a few hundred PDFs by hand (open, Ctrl+F, close) is an afternoon. The index does the reading once so you never do it again.
Does it work for Word and Excel files too?
Word and Excel files are found by their file names and by their connections to other files (what they were saved or edited alongside). Full text search inside files covers PDFs, plain text, and code files.
Free forever, no card. Download for Windows · related: find a file you lost.