Method and apparatus of scrolling a document displayed in a browser window

Abstract

Methods and systems for performing a scroll operation are disclosed. A method may include displaying a first page of a portable document format (pdf) document on a browser window, associating respective thumbnails with each of the pages in the pdf document, and displaying two or more of the respective thumbnails overlaid on the first page. The method may also include receiving an indication to scroll the pdf document in a first direction, scrolling the pages of the pdf document at a first rate in the first direction, and scrolling the respective thumbnails of each of the pages at a second rate, different than the first rate, in the first direction. The varying scroll rate of the document and its corresponding thumbnails provides the user with different viewing options to view the document when performing a scrolling operation.

1 . A computer-implemented method, comprising:
 displaying a first page of a portable document format (pdf) document on a browser window;   associating respective thumbnails with each of a plurality of pages in the pdf document;   displaying two or more of the respective thumbnails overlaid on the first page;   receiving an indication to scroll the pdf document in a first direction;   scrolling the plurality of pages of the pdf document at a first rate in the first direction; and   scrolling the respective thumbnails of each of the plurality of pages at a second rate, different than the first rate, in the first direction.   
     
     
         2 . The method of  claim 1 , wherein the first rate is faster than the second rate. 
     
     
         3 . The method of  claim 1 , wherein a respective page number is displayed on top of each respective thumbnail. 
     
     
         4 . The method of  claim 1 , wherein displaying two or more of the respective thumbnails with the first page comprises:
 displaying the two or more of the respective thumbnails overlaid on a right side or a left side of the document as viewed by a user.   
     
     
         5 . A system, comprising:
 a scroll adjustor, implemented with a computing device, configured to:
 display a first page of a portable document format (pdf) document on a browser window; 
 associate respective thumbnails with each of a plurality of pages in the pdf document; 
 display two or more of the respective thumbnails overlaid on the first page; 
 receive an indication to scroll the pdf document in a first direction; 
   scroll the plurality of pages of the pdf document at a first rate in the first direction; and   scroll the respective thumbnails of each of the plurality of pages at a second rate, different than the first rate, in the first direction.   
     
     
         6 . The system of  claim 5 , wherein the first rate is faster than the second rate. 
     
     
         7 . The system of  claim 5 , wherein a respective page number is displayed on top of each respective thumbnail. 
     
     
         8 . The system of  claim 5 , wherein the scroll adjustor is further configured to:
 display the two or more of the respective thumbnails overlaid on a right side or a left side of the document as viewed by a user.