Patent ID: 8843823

Claim:
A document display system comprising: a first document display device; and a second document display device; wherein each of the first document display device and the second document display device includes a memory and one or more processors, the memory storing instructions for the one or more processors to execute: displaying, on the subject document display device, an electronic document in accordance with display settings for a common item and a particular item, the common item being a predetermined item of a display setting item common to the first document display device and the second document display device, the particular item being a display setting item for the subject document display device except the common item, updating display settings information indicating latest display settings in response to operation for modifying settings by a user during a period in which the electronic document is displayed, and in response to a command to externally send out the electronic document, adding the display settings information to the electronic document and sending out the resultant electronic document and the display settings information, the memory of the first document display device further includes instructions for the one or more processors to execute: obtaining the electronic document sent out from the second document display device and second display settings information added to the electronic document by the second document display device, and if display settings indicated in the second display settings information obtained along with the electronic document from the second document display device contain settings for the common item and settings for the particular item previously updated by the first document display device while the electronic document was displayed by the first document display device the last time, incorporating the settings for the common item and the settings for the particular item contained in the display settings indicated in the second display settings information obtained from the second document display device into display settings to be applied at a start of display of the electronic document on the first document display device.