PDF viewers that support highlighting hits

Last Reviewed: February 5, 2016

Article: DTS0229

Applies to: dtSearch 7.67 and later

dtSearch is able to highlight hits in PDF files if you have a compatible PDF viewer installed on your computer.  If the PDF viewer you use does not support hit highlighting, then PDF files will appear without hit highlighting in dtSearch.  To test your PDF viewer, open Internet Explorer and go to this link:

http://support.dtsearch.com/support/demos/pdftest/

The following summarizes the results of our compatibility testing to date (please send any updates to support@dtsearch.com):

Product Name

Web Site

Supports hit highlighting

Adobe Reader X, XI, DC

http://www.adobe.com

Yes, with plug-in (see note 1 below).

Adobe Reader 9

http://www.adobe.com

Yes, with option change (see note 2 below).

Adobe Reader through version 8

http://www.adobe.com

Yes

Google Chrome PDF Viewer

http://www.google.com

No (see note 3 below)

Firefox PDF Viewer

https://www.mozilla.org

No (see note 3 below)

Microsoft Edge PDF Viewer

http://www.microsoft.com

No (see note 3 below)

PDF-XChange

http://www.tracker-software.com

No

Foxit Reader

http://www.foxitsoftware.com

No

Nuance PDF Reader

http://www.nuance.com

No

PDF Complete

http://www.pdfcomplete.com

No

XpdfViewer Library

http://www.glyphandcog.com

Yes

Note 1.  Adobe Reader X, XI, and DC require a plug-in to make hit highlighting work.  For information on this plug-in, please see http://download.dtsearch.com/pdfhl

Note 2.  Adobe Reader 9 disables hit highlighting by default.  To enable hit highlighting,

(1) Open Adobe Reader

(2) Click Edit > Preferences > Search, and

(3) check the box labelled Enable search highlights from external highlight server.
The same procedure applies to Adobe Acrobat 9.

Note 3.  Microsoft Edge, Chrome, and Firefox do not allow Adobe Reader to run as an embedded PDF viewer.  Instead, these browsers have implemented their own PDF viewer that does not include support for highlighting hits.

Server-side option  As an alternative to using the dtSearch plug-in, a server-side only PDF hit-highlighting solution is available from Contegra Systems, Inc. This solution bypasses the need to have each end-user separately install software to re-add hit highlights back to PDFs.  For more information, please contact http://contegrasystems.com/contact/index.htm