How do I make a PDF Index (Catalog) for my research papers?

First, open Adobe Acrobat Pro. Find the 'Catalog' option in the tools or menus. Select all the folders or files that contain your research papers. Start the process to build the index. Acrobat will create special files that speed up searching. Once it's done, you can use the regular search function, and it will be much faster.

What is the difference between searching text in a single PDF and using a PDF Index (Catalog)?

Feature Searching a Single PDF Using a PDF Index (Catalog). Speed Fast for one PDF, but slow if you repeat for many. Very fast across many PDFs, almost instant. Setup No special setup needed, just open and search. Requires a one-time setup to build the index first. Coverage Searches only the open PDF's content. Searches all indexed PDFs, including comments, bookmarks, and attachments. Best For Finding information in one or a few documents. Finding information quickly across a large collection of documents.

Assembling Primary Sources Fast in Adobe Acrobat — How-to & AI prompts

AI prompts

1 way to ask · copy any one

CDecide — “help me choose”I have a stack of letters, court records, and newspaper clippings about the 1888 Springfield…+

I have a stack of letters, court records, and newspaper clippings about the 1888 Springfield mill strike; I’m supposed to present an evidence base at the department seminar on [deadline=Friday] and I’m fumbling through different formats and missing links. I can’t tell whether gaps are true absences or stuff I haven’t located, and I’m worried the narrative will collapse if I misread a key letter. Tell me the most likely diagnosis: is this a sourcing problem, a transcription/search problem, or a provenance/forgery worry? Recommend the single next move that secures enough evidence for [deadline=Friday] without wrecking the archive—what to prioritize, who to call in Special Collections, and one line I can use to explain to the seminar chair why my claims are provisional.

when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed.

How to do it

the tool · the steps · what to avoid

1
Place all PDFs you want to include in the search index into a single folder on your computer.
2
Open Adobe Acrobat Pro.
3
Go to the Tools view and select Catalog.
4
In the Catalog panel, click New Index.
5
In the Index Definition dialog, click Add Folder and select the folder containing your PDFs.
6
Optionally, adjust the advanced options for the index (such as custom stop words or include/exclude subfolders) as needed.
7
Click Build to start creating the index.
8
Choose a location and filename for your .pdx index file and click Save.
9
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.

In the appWith the API

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.

Glossary

words on this page

PDF IndexA special file that helps you search many PDF documents very quickly.ExampleSearching for a keyword across a thousand legal documents is instant thanks to the PDF Index.

CatalogThe Acrobat tool that builds an index for searching many PDFs quickly.ExampleThe Catalog tool quickly indexed all project PDFs, allowing instant keyword searches across them.

.pdx fileThe main file created by Catalog that stores information for fast searching.ExampleSearching a folder of documents uses the .pdx file to instantly locate keywords.

Who does this

3 roles

Knowledge ManagerRecords AdministratorLegal Assistant

FAQ

about this task

First, open Adobe Acrobat Pro.
Find the 'Catalog' option in the tools or menus.
Select all the folders or files that contain your research papers.
Start the process to build the index. Acrobat will create special files that speed up searching.
Once it's done, you can use the regular search function, and it will be much faster.

A PDF Index, created by the Catalog feature, is like a detailed map for all your PDF documents. It lists every word and where it is found across your entire collection. When you search, Acrobat looks at this map instead of reading every single page of every PDF. This is much faster, especially for hundreds or thousands of documents, because the index is already organized for quick lookups.

Yes, a PDF Index created with the Catalog feature covers more than just the main text. It also includes comments, bookmarks, tags, metadata, and even attachments within your PDFs. So, when you search using the index, you will find information located in these parts of your documents as well.

You should use the Catalog feature because it builds a special index that makes searching across many PDFs much, much faster. The regular search bar has to open and scan each PDF one by one, which takes a long time for a large collection. The Catalog creates a pre-built index, so searches become almost instant, saving you a lot of time and effort.

Feature	Searching a Single PDF	Using a PDF Index (Catalog)
Speed	Fast for one PDF, but slow if you repeat for many.	Very fast across many PDFs, almost instant.
Setup	No special setup needed, just open and search.	Requires a one-time setup to build the index first.
Coverage	Searches only the open PDF's content.	Searches all indexed PDFs, including comments, bookmarks, and attachments.
Best For	Finding information in one or a few documents.	Finding information quickly across a large collection of documents.

Assembling Primary Sources Fast

When to use it

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How to do it

Glossary

The real tasks

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