Scan incoming paper records into searchable PDFs, run text recognition, and save them in the shared Incoming folder wi…
Place all PDFs you want to include in the search index into a single folder on your computer.
Open Adobe Acrobat Pro.
Go to the Tools view and select Catalog.
In the Catalog panel, click New Index.
In the Index Definition dialog, click Add Folder and select the folder containing your PDFs.
Optionally, adjust the advanced options for the index (such as custom stop words or include/exclude subfolders) as needed.
Click Build to start creating the index.
Choose a location and filename for your .pdx index file and click Save.
Wait for the indexing process to complete, then click Close when finished.
Best practiceFor best performance, keep your PDF collection and the .pdx index file together in the same folder so users can easily search across all documents.
After building the index, use the Advanced Search feature and select 'Use Index' to search across all indexed PDFs at once.
This runs in the Acrobat app - there is no separate API for this task.
A full-text index in Acrobat is a special file that lists all the words in a group of PDFs. This index makes searching much faster because Acrobat can look up words in the index instead of opening each file. It is useful when you have many PDFs and need to find information quickly.
If your PDF is a blurry scan and does not have selectable text (like from OCR), the Catalog index will not find words in the image. Catalog only searches text it can read, including body text, comments, bookmarks, and metadata. To search scanned images, you need to run OCR in Acrobat first to turn the image into searchable text before indexing.
Searching with Catalog is faster because Acrobat uses the index file to find words. It does not need to open and read every PDF each time you search. This saves time, especially with large collections.
| Catalog Indexing | Normal Search |
|---|---|
| Searches all indexed PDFs at once | Searches only one file or open files |
| Much faster for large sets | Slower for many files |
| Covers text, comments, bookmarks, attachments | Usually only body text |
| Needs setup (indexing) | No setup needed |