I have done the same thing on the ADOBE, so I am writing down all of the steps for your help -
An Adobe PDF document can contain metadata, which is general information such as title and author that applies to the entire document.
You typically create the document’s metadata when the document is created and can modify the metadata at any time. For more information on metadata, see the most current PDF Reference, section 10.2.
When INDEXMODE=METADATA is specified, the PDF indexer extracts fields from the Document Information Dictionary that correspond to the following metadata keywords, if they exist, and places their values into the .ind file:
Title
Author
Subject
Creator
Producer
CreationDate
ModDate
Trapped
The metadata keywords are the group field names within the .ind file and can be mapped to the application group fields in the application. You can opt not to map any group field names. Because the metadata keywords apply to the entire document, you can index the document only as one group. If TRIGGER, FIELD, or INDEX parameters are specified, they are ignored. Metadata indexing cannot be combined with indexing using a TRIGGER. If the document contains none of these metadata fields, the PDF indexer issues the following error message and stops processing:
ARS4940 Index not found by page page number
where page number is the number specified in the INDEXSTARTBY parameter.
The PDF indexer converts dates that are specified in the PDF format of (D:YYYYMMDDHHmmSSOHH'mm) to a format of YYYYMMDDHHmmSS. The index values CreationDate and ModDate contain the date formatted with the local time. If the time zone information is specified in the PDF date ( the OHH'mm section ) the PDF indexer creates another index value named CreationDateTZ or ModDateTZ which contains the date formatted with the time adjusted to Universal Time. For more information on Adobe date formats, see the most current PDF Reference, section 3.8.3.
The only parameter required for metadata indexing is:
indexmode=metadata
Here is an example of an index file created by Metadata indexing:
COMMENT:
COMMENT: Generic Index File Format
COMMENT:
COMMENT:
COMMENT:Code Page of the Index Data
CODEPAGE:1208
COMMENT:Index Field(s)
GROUP_FIELD_NAME:Title
GROUP_FIELD_VALUE:Administrator's Guide
GROUP_FIELD_NAME:Author
GROUP_FIELD_VALUE:IBM
GROUP_FIELD_NAME:Creator
GROUP_FIELD_VALUE:XPP
GROUP_FIELD_NAME:Producer
GROUP_FIELD_VALUE:IBM
GROUP_FIELD_NAME:CreationDate
GROUP_FIELD_VALUE:20090408173745
GROUP_FIELD_NAME:CreationDateTZ
GROUP_FIELD_VALUE:20090408233745
GROUP_FIELD_NAME:ModDate
GROUP_FIELD_VALUE:20090408173745
GROUP_FIELD_NAME:ModDateTZ
GROUP_FIELD_VALUE:20090408233745
COMMENT:Index Offsets and Length
GROUP_OFFSET:0
GROUP_LENGTH:748641
GROUP_PAGES:387
GROUP_FILENAME:\pdf\pdfoutput\admin.pdf
COMMENT:
COMMENT:
COMMENT:
COMMENT:End Generic Indexing File
Create and manage an index in a PDF
You can reduce the time required to search a long PDF by embedding an index of the words in the document. Acrobat can search the index much faster than it can search the document. The embedded index is included in distributed or shared copies of the PDF. Users search PDFs with embedded indexes exactly as they search those without embedded indexes; no extra steps are required.
Add an index to a PDF
With the document open in Acrobat, choose Tools > Index.
The Index toolset is displayed in the secondary toolbar.
In the secondary toolbar, click Manage Embedded Index.
In the Manage Embedded Index dialog box, click Embed Index.
Read the messages that appear, and click OK.
Note:
In Outlook and Lotus Notes, you have the option of embedding an index when you convert email messages or folders to PDF. This is especially recommended for folders containing many email messages.
Update or remove the embedded index in a PDF
Choose Tools > Index.
The Index toolset is displayed in the secondary toolbar.
In the secondary toolbar, click Manage Embedded Index.
Click either Update Index or Remove Index.
About the Catalog feature (Acrobat Pro)
You can define a specific group of PDFs as a catalog and create a unified index for that entire collection of documents. When users search the cataloged PDFs for specific information, the index makes the search process much faster.
When you distribute the collection on a CD, you can include the index with the PDFs.
You can catalog documents written in Roman, Chinese, Japanese, or Korean characters. The items you can catalog include the document text, comments, bookmarks, form fields, tags, object and document metadata, attachments, document information, digital signatures, image XIF (extended image file format) metadata, and custom document properties.
Preparing PDFs for indexing (Acrobat Pro)
Begin by creating a folder to contain the PDFs you want to index. All PDFs should be complete in both content and electronic features, such as links, bookmarks, and form fields. If the files to be indexed include scanned documents, make sure that the text is searchable. Break long documents into smaller, chapter-sized files, to improve search performance. You can also add information to a file’s document properties to improve the file’s searchability.
Before you index a document collection, it’s essential that you set up the document structure on the disk drive or network server volume and verify cross-platform filenames. Filenames may be truncated and hard to retrieve in a cross-platform search. To prevent this problem, consider these guidelines:
Rename files, folders, and indexes using the MS-DOS file-naming convention (eight characters or fewer followed by a three-character filename extension), particularly if you plan to deliver the document collection and index on an ISO 9660-formatted CD-ROM disc. Basically I have to research and do this when I am developing an app for mobile app development company, basically there it requires. Remove extended characters, such as accented characters and non-English characters, from file and folder names. (The font used by the Catalog feature does not support character codes 133 through 159.)
Don’t use deeply nested folders or path names that exceed 256 characters for indexes that will be searched by Mac OS users.
If you use Mac OS with an OS/2 LAN server, configure IBM®LAN Server Macintosh (LSM) to enforce MS-DOS file-naming conventions, or index only FAT (File Allocation Table) volumes. (HPFS [High Performance File System] volumes may contain long unretrievable filenames.)
If the document structure includes subfolders that you don’t want indexed, you can exclude them during the indexing process.
Adding metadata to document properties (Acrobat Pro)
To make a PDF easier to search, you can add file information, called metadata, to the document properties. (You can see the properties of the currently open PDF by choosing File > Properties, and clicking the Description tab.)
When adding data for document properties, consider the following recommendations:
Use a good descriptive title in the Title field. The filename of the document should appear in the Search Results dialog box.
Always use the same option (field) for similar information. For example, don’t add an important term to the Subject option for some documents and to the Keywords option for others.
Use a single, consistent term for the same information. For example, don’t use biology for some documents and life sciences for others.
Use the Author option to identify the group responsible for the document. For example, the author of a hiring policy document might be the Human Resources department.
If you use document part numbers, add them as Keywords. For example, adding doc#=m234 in Keywords could indicate a specific document in a series of several hundred documents on a particular subject.
Use the Subject or Keywords option, either alone or together, to categorize documents by type. For example, you might use status report as a Subject entry and monthly or weekly as a Keywords entry for a single document.
If you already have specialized training in Adobe PDF, you can define custom data fields, such as Document Type, Document Number, and Document Identifier, when you create the index. This is recommended only for advanced users and is not covered in Acrobat Complete Help.
Create an index for a collection (Acrobat Pro)
When you build a new index, Acrobat creates a file with the .pdx extension and a new support folder, which contains one or more files with .idx extensions. The IDX files contain the index entries. All of these files must be available to users who want to search the index.
Choose Tools > Index.
The Index toolset is displayed in the secondary toolbar.
In the secondary toolbar, click Full Text Index With Catalog.
The Catalog dialog box is displayed.
In the Catalog dialog box, click New Index.
The New Index Definition dialog box is displayed.
Hope this will help you. If you have any further doubt please let me know.
