Adobe, Yahoo to Integrate Products  SAN FRANCISCO (Reuters) - Adobe Systems Inc. &lt;A HREF="http://www.reuters.co.uk/financeQuoteLookup.jhtml?ticker=ADBE.O qtype=sym infotype=info qcat=news"&gt;ADBE.O&lt;/A&gt; and  Yahoo Inc. &lt;A HREF="http://www.reuters.co.uk/financeQuoteLookup.jhtml?ticker=YHOO.O qtype=sym infotype=info qcat=news"&gt;YHOO.O&lt;/A&gt; on Monday said they have signed a deal to  combine Adobe services, like its widely used document-sharing  program, with Yahoo's Web search functions.