IFilter
The IFilter interface scans documents for text and properties (also called attributes).
It extracts chunks of text from these documents, filtering out embedded formatting and retaining information about the position
of the text. It also extracts chunks of values, which are properties of an entire document or of well-defined parts of a document.
IFilter provides the foundation for building higher-level applications such as document indexers and application-independent viewers.
Full-text search engines like StopKa call the methods of this interface to extract text and property information for creating an index.
Text viewers (like StopKa document panel) can also use this interface after a query, for example, to show the hit highlights for that file.
On Microsoft site it is possible to find full interface description.
The IFilter acts as a plug-in for StopKa search and view functions.
Most important sites
Filter Central from Microsoft: http://blogs.msdn.com/ifilter
Desktop Search IFilters: http://channel9.msdn.com/wiki/wiki/DesktopSearchIFilters
IFilter.Org : http://www.ifilter.org
Links to download IFilters for different file formats
1) .cab, .chm, .exe, .hlp, .mht, .rar, .zip: http://www.citeknet.com/Downloads/tabid/53/Default.aspx
2) .pdf: [from Foxit] http://www.foxitsoftware.com/pdf/ifilter
3) .pdf: [from Adobe] http://www.adobe.com/support/downloads/detail.jsp?ftpID=4025
(Adobe PDF IFilter v6.0) http://www.adobe.com/support/downloads/detail.jsp?ftpID=2611
(Adobe PDF IFilter v5.0) http://download.adobe.com/pub/adobe/acrobat/win/all/ifilter50.exe
(+howto) http://kb2.adobe.com/cps/327/327014.html
(Adobe PDF IFilter v4.1) http://download.adobe.com/pub/adobe/acrobat/win/all/ifilt41.exe
4) .docx, .docm, .pptx, .pptm, .xlsx, .xlsm, .xlsb, .zip, .one, .vdx, .vsd, .vss, .vst, .vdx, .vsx, and .vtx: [2007 Office System Converter: Microsoft Filter Pack - Office and Visio filters]
http://www.microsoft.com/downloads/details.aspx?FamilyId=60C92A37-719C-4077-B5C6-CAC34F4227CC&displaylang=en;
http://www.microsoft.com/downloads/details.aspx?familyid=dcee9e09-448b-4386-b901-efea29cac808&displaylang=en
5) .dwg: http://www.dwgindex.com/DWGFilter.html
http://usa.autodesk.com
6) .xps:
[howto] http://blogs.msdn.com/ifilter/archive/2007/03/24/indexing-xps-documents-with-moss-2007.aspx
[download] http://www.microsoft.com/whdc/xps/viewxps.mspx
7) .csf: http://www.igcsharepoint.com/products.htm
8) .jpeg: http://www.aimingtech.com/jpeg_ifilter
9) .rtf: http://download.microsoft.com/download/SharePointPortalServer/Utility/1/NT5/EN-US/RTF.exe
10) PALM: http://bloggit.livejournal.com/9467.html
11) WordPerfect: ftp://ftp.corel.com/pub/WordPerfect/wpwin/8/
12) .gif, OpenOffice and StarOffice, .aspx, .chm, .dwg, .dwf, Inventor, MindManager,.msg, MS Project, .pdf, .ps , .eps, .psd, (PostScript), .rar, .shtml, vCard, .wmv, .wma, .xpm, .zip:
http://www.ifiltershop.com/staroffice-openoffice-ifilter.html
13) .cel, .dng: http://www.alnasoft.com
14) .dat (Palm Desktop): http://www.fleem.com/users/bloggit/PalmIFilter.html
Download all IFilters in one package
Here it is possible to download all filters [IFilters.zip] in one package and then install it one separately.
