# US 2013/0160142 A1 · Track Changes Permissions > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0160142 A1 - Document ID: US20130160142A1 - Status: Published application - Kind: A1 - Application number: 13/332,332 - Filed: 2011-12-20 - Published: 2013-06-20 - Earliest claimed: 2011-12-20 - Assignees: Apple Inc. - Inventors: Sing Yeung Lai; Chi Ming To; Keng Fai Lee; Pui Ki Chan; Alan Chu; Oi Ying Angela Lee - Web page: https://patentgrep.com/patent/US20130160142A1 ## CPC - G06F 21/6209: {to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself} - G06F 2221/2147: Locking files - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract Various features and processes related to document collaboration are disclosed. In some implementations, animations are presented when updating a local document display to reflect changes made to the document at a remote device. In some implementations, a user can selectively highlight changes made by collaborators in a document. In some implementations, a user can select an identifier associated with another user to display a portion of a document that includes the other user's cursor location. In some implementations, text in document chat sessions can be automatically converted into hyperlinks which, when selected, cause a document editor to perform an operation. ## Claims ### Claim 1 A method comprising: obtaining a document having one or more provisional changes; obtaining permission information associated with the document; based on the permission information, determining that a user is not authorized to perform a track changes operation on the document; preventing the user from invoking the track changes operation. ### Claim 2 (depends on 1) The method of claim 1, further comprising: preventing access to one or more user interface elements for invoking the track changes operation. ### Claim 3 (depends on 1) The method of claim 1, wherein the document includes provisional changes. ### Claim 4 (depends on 3) The method of claim 3, wherein the provisional changes are associated with a plurality of users. ### Claim 5 (depends on 3) The method of claim 3, wherein the track changes operation is an operation that accepts one or more of the provisional changes into the document. ### Claim 6 (depends on 3) The method of claim 3, wherein the track changes operation is an operation that rejects one or more of the provisional changes from the document. ### Claim 7 (depends on 3) The method of claim 3, wherein the track changes operation is an operation turns off change tracking in the document. ### Claim 8 (depends on 1) The method of claim 1, wherein the document is a text document. ### Claim 9 (depends on 1) The method of claim 1, wherein the document is a multimedia document. ### Claim 10 (depends on 1) The method of claim 1, wherein the document is concurrently accessed by the plurality of devices. ### Claim 11 A non-transitory computer-readable medium including one or more sequences of instructions which, when executed by one or more processors, causes: obtaining a document having one or more provisional changes; obtaining permission information associated with the document; based on the permission information, determining that a user is not authorized to perform a track changes operation on the document; preventing the user from invoking the track changes operation. ### Claim 12 (depends on 11) The computer-readable medium of claim 11, where the instructions cause: preventing access to one or more user interface elements for invoking the track changes operation. ### Claim 13 (depends on 11) The computer-readable medium of claim 11, wherein the document includes provisional changes. ### Claim 14 (depends on 13) The computer-readable medium of claim 13, wherein the provisional changes are associated with a plurality of users. ### Claim 15 (depends on 13) The computer-readable medium of claim 13, wherein the track changes operation is an operation that accepts one or more of the provisional changes into the document. ### Claim 16 (depends on 13) The computer-readable medium of claim 13, wherein the track changes operation is an operation that rejects one or more of the provisional changes from the document. ### Claim 17 (depends on 13) The computer-readable medium of claim 13, wherein the track changes operation is an operation that turns off change tracking in the document. ### Claim 18 A system comprising: one or more processors; and a non-transitory computer-readable medium including one or more sequences of instructions which, when executed by one or more processors, causes: obtaining a document having one or more provisional changes; obtaining permission information associated with the document; based on the permission information, determining that a user is not authorized to perform a track changes operation on the document; preventing the user from invoking the track changes operation. ### Claim 19 (depends on 18) The system of claim 18, where the instructions cause: preventing access to one or more user interface elements for invoking the track changes operation. ### Claim 20 (depends on 18) The system of claim 18, wherein the document includes provisional changes. ### Claim 21 (depends on 20) The system of claim 20, wherein the provisional changes are associated with a plurality of users. ### Claim 22 (depends on 20) The system of claim 20, wherein the track changes operation is an operation that accepts one or more of the provisional changes into the document. ### Claim 23 (depends on 20) The system of claim 20, wherein the track changes operation is an operation that rejects one or more of the provisional changes from the document. ### Claim 24 (depends on 20) The system of claim 20, wherein the track changes operation is an operation that turns off change tracking in the document.