Patent Application
20140032478
Page description language documents, such as Portable Document Format documents, are heavily used for many purposes. The number of purposes continues to grow as page description language specifications are expanded to provide more and more options for document creation and presentation. One of these options is the ability to package, or embed, files within a page description language document (hereafter PDLD). As files are packaged within a page description language document, the file size of the PDLD grows. As the file size grows, the ability to distribute the PDLD may be diminished.
In the following detailed description, reference is made to the accompanying drawings that form a part hereof, and in which is shown by way of illustration specific embodiments in which the inventive subject matter may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice them, and it is to be understood that other embodiments may be utilized and that structural, logical, and electrical changes may be made without departing from the scope of the inventive subject matter. Such embodiments of the inventive subject matter may be referred to, individually and/or collectively, herein by the term “invention” merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed.
The following description is, therefore, not to be taken in a limited sense, and the scope of the inventive subject matter is defined by the appended claims.
The functions or algorithms described herein are implemented in hardware, software or a combination of software and hardware in one embodiment. The software comprises computer executable instructions stored on computer readable media such as memory or other type of storage devices. Further, described functions may correspond to modules, which may be software, hardware, firmware, or any combination thereof. Multiple functions are performed in one or more modules as desired, and the embodiments described are merely examples. The software is executed on a digital signal processor, ASIC, microprocessor, or other type of processor operating on a system, such as a personal computer, server, a router, or other device capable of processing data including network interconnection devices.
Some embodiments implement the functions in two or more specific interconnected hardware modules or devices with related control and data signals communicated between and through the modules, or as portions of an application-specific integrated circuit. Thus, the exemplary process flow is applicable to software, firmware, and hardware implementations.
It has become increasingly common to create, transmit, and display documents in electronic format. Electronic documents have a number of advantages over paper documents including their ease of transmission, their compact storage, and their ability to be edited and/or electronically manipulated. A page in an electronic document can include various types of graphical elements, including text, line art, and images. Electronic documents are generally created by computer programs (also called application programs or simply applications) that can be executed by a user on a computer to create and edit electronic documents and to produce (directly or indirectly) printed output defined by the documents. Such programs include the ADOBE ILLUSTRATOR® and PHOTOSHOP® products, both available from ADOBE SYSTEMS INCORPORATED of San Jose, Calif. Computer programs typically maintain electronic documents as document files that can be saved on a computer hard drive or a portable medium such as a USB drive or floppy diskette. An electronic document does not necessarily correspond to a document file. An electronic document can be stored in a portion of a document file that holds other documents, in a single document file dedicated to the electronic document in question, or in multiple coordinated document files. Graphical elements in electronic documents can be represented in vector form, raster form, or in hybrid forms.
An electronic document is provided by an author, distributor, or publisher who often desires that the document be viewed with a particular appearance, such as the appearance with which it was created. A portable electronic document can be viewed and manipulated on a variety of different platforms and can be presented in a predetermined format where the appearance of the document as viewed by a reader is as it was intended by the publisher. One such predetermined format is the Portable Document Format (“PDF”) developed by ADOBE SYSTEMS INCORPORATED. The class of such predetermined formats is often referred to as a page description language. An example of page-based software for creating, reading, and displaying PDF documents is the ADOBE ACROBAT® program, also of ADOBE SYSTEMS INCORPORATED. The ADOBE ACROBAT® program is based on ADOBE SYSTEMS INCORPORATED'S POSTSCRIPT® technology, which describes formatted pages of a document in a device-independent fashion. An ADOBE ACROBAT® program on one platform can create, display, edit, print, annotate, etc. a PDF document produced by another ADOBE ACROBAT® program running on a different platform, regardless of the type of computer platform used. A document in a certain format or language, such as a word processing document, can be translated into a PDF document using the ADOBE ACROBAT® program. A PDF document can be quickly displayed on any computer platform having the appearance intended by the publisher, allowing the publisher to control the final appearance of the document.
PDLD files may also include one or more files packaged, or embedded therein. For example, a PDLD file may also include another page description language document, spreadsheet document, video file, or other electronic file type. As files are packaged within a page description language document, the file size of the PDLD grows. As the file size grows, some advantages provided by the PDLD file type may be diminished by the increased file size. Such packaged files may not be as easy to transmit, such as via email when a recipient's email server does not allow reception of emails over a certain file size.
Various embodiments described herein provide mechanisms that provide for virtual packaging, or embedding, of electronic files in document files. For example, rather than packaging an electronic file directly in a document file, metadata may be added to the document file including a Universal Resource Identifier (URI), such as a Universal Resource Locator (URL), referencing a location from which the electronic file may be downloaded. Other embodiments are described and illustrated herein for creating, viewing, storing, and transmitting such document files with virtually packaged electronic files.
The header 102, in this embodiment, includes a graphic of a company of origin of the page description language document. The graphic is instantiated from an image file that may also be packaged within the page description language document. However, in some embodiments, the image file may be virtually packaged in the PDLD by including an Internet address in metadata of the PFPS or elsewhere in the PDLD. Thus, in the event the company of origin modifies its image file, an updated image file may be stored to the Internet address and subsequent views of the PDLD using the PFPS will display the modified image file. Further, a file size of the PDLD may be reduced by removing the image file from the page description language document. In some embodiments, the package file presentation shell may also be virtually packaged.
The columns 104, 106, 108 of the body portion of the user interface 100 include a column for each of three documents. The columns may each include a title 110, 114, 118 and a description 112, 116, 120. The titles and descriptions provide information to a viewer about a packaged file that may be viewed by selecting a respective column 104, 106, 108. For example, a user may desire to view information regarding the user's auto insurance policy. The user in such an example would select the left most column 104, such as by clicking a mouse on the column. Such a selection, in some embodiments, may cause the underlying file to be displayed, such as in the user interface 200 of
One or more of the three documents represented by respective columns 104, 106, 108 may be virtually packaged within the PDLD presented in the user interface 100. When such a document is virtually packaged in the page description language document, the PDLD includes a URI in metadata referencing a location from which the document may be retrieved. The title and description of that document may also be included in the metadata. However, in other embodiments, the title and description may be obtained from the document upon retrieval.
The user interface 200 includes a header 202 and a body 204. The header 202 includes the same image file of the header 102 in the user interface 100 of
The user interfaces 100 and 200 of
For example,
The example hierarchical node PFPS 300 includes a top-level node 302 and multiple lower level nodes 304. In some embodiments, although the nodes may be at different levels in the hierarchy, each node may include identical data elements. For example, the data elements of each node, as in the illustrated data structure 306, may include:
A data structure of a PFPS included as a packaged file may include metadata associating each of one or more packaged files within a document file to a presentation node of the PFPS. A presentation node may or may not be a hierarchical presentation node. The data structure of the PFPS may further include data defining a packaged file presentation header to be presented with a packaged file when selected within a document reader application for display, such as is illustrated in
The other packaged files represented in the pseudo code listing 400 are provided in the 3.0, 4.0, and 5.0 OBJs. The metadata of the 3.0 and 4.0 OBJs each include a URI of a location from which the respective file may be downloaded. The 5.0 OBJ includes the data of the packaged file 3. This illustrates an embodiment where less than all of the packaged files are physically included within the document file.
In some embodiments, the document file of the pseudo code listing 400 is an example of a document file that may be distributed by an author. The document may be distributed in any number of ways including email, disk, posting to a network location such as a shared drive or web site, peer-to-peer file sharing, or other distribution means. When the document file is opened and a virtually packaged file is retrieved from a location identified by a URI, the document file may be modified to include the content of the retrieved file. As a result, later access to the retrieved file will not require another retrieval of the packaged file as it is now present within the document file. However, the URI may remain in the document as a location to which to post updates to the retrieved document.
In some embodiments, the database 514 stores document files with packaged files. An application executing on a client computing device 502 may request one of the stored document files from the application server 510. The application server will retrieve the requested file and provide it to the requesting client computing device 502 application.
However, in another embodiment, the application executing on a client computing device 504 may already posses a document file with one or more virtually packaged files. The application executing on the client computing device 504, upon receipt of a request to display a virtually packaged file will obtain the URI of the file and communicate a request over the network 508 for the virtually packaged file to the application server 510 based on the URI. The application server 510 may then retrieve only the requested virtually packaged file and provide the retrieved file over the network 508 to the requesting client computing device 504 application. In other embodiments, the application server 510 may retrieve a copy of the document file that includes the one or more packaged files from the database 514, extract the requested file, and provided the extracted file to the requesting client computing device 504 application.
In another instance, the application server 510 may receive a request, from a requesting client computing device 506 over the network 508. The request may include a request for a portion of a document, or other electronic file, stored in the database 514. The application server 510 may then retrieve the requested portion of the document from the database 514 and send the retrieved portion of the document to the requesting client computing device 506 over the network 508. The application server 510 is also operable to receive and store documents in the database 514 and receive and store updates to the documents. The updates to the documents may be stored directly in the respective document in the database 514. Alternatively, updates may be stored in the database 514 in an associative manner with a respective document as a markup of the document.
One example computing device in the form of a computer 610, may include multiple components interconnected via a bus. Such components may include a processing unit 602, memory 604, removable storage 612, and non-removable storage 614. Memory 604 may include volatile memory 606 and non-volatile memory 608. Computer 610 may include—or have access to a computing environment that includes—a variety of computer-readable media, such as volatile memory 606 and non-volatile memory 608, removable storage 612 and non-removable storage 614. Computer storage includes random access memory (RAM), read only memory (ROM), erasable programmable read-only memory (EPROM) & electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD ROM), Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium capable of storing computer-readable instructions. Computer 610 may include or have access to a computing environment that includes input 616, output 618, and a communication connection 620. The computer may operate in a networked environment using a communication connection to connect to one or more remote computers, such as database servers. The remote computer may include a personal computer (PC), server, router, network PC, a peer device or other common network node, or the like. The communication connection may include a Local Area Network (LAN), a Wide Area Network (WAN) or other networks.
Computer-readable instructions stored on a computer-readable medium are executable by the processing unit 602 of the computer 610. A hard drive, CD-ROM, and RAM are some examples of articles including a computer-readable medium. For example, a computer program 625 capable of generating a document with virtually packaged files may be included on a CD-ROM and loaded from the CD-ROM to a hard drive. The computer-readable instructions may be included on the computer-readable medium to perform one or more of the methods and data structures described herein or derived therefrom. An example of such a method is illustrated and described with regard to
As illustrated in
The second computer file generated by the method 700, when opened and displayed includes a representation of the at least one other computer file. The representation is generated as a function of the metadata associated with the at least one other computer file. When displayed within an application, the application may be operable to receive a selection of the at least one other computer file for presentation and then download the selected at least one other computer file from the remote network storage location identified in the metadata. The downloaded file may then be presented to a human user, such as through a monitor, or provided to a logical user for further processing. In some embodiments, when the file is downloaded, the second computer file may be updated to include the content of the downloaded file to remove the need to download the file a next time the file is desired.
When presenting the downloaded file to a human user through a monitor, the application may further include receiving input modifying the first computer file or the downloaded file and updating the first computer file copied to the remote network storage location. Updates to the first computer file or downloaded file copied to the remote network storage location may include storing data to the remote network storage location. The stored data typically represents the received input modifying the first computer file and downloaded computer file. In other embodiments, the first computer file or the at least one other file may be replaced with updated files at the remote location. Obtaining the updates may include retrieving data representative of the updates and reproducing those updates locally as a function of that data or retrieving updated files from the remote network storage location.
The method 800 includes generating 802 a view of a page description language document. The generated 802 view may include a view of at least one packaged file presentation node instantiated based on a packaged file presentation node definition included in the page description language document. The packaged file presentation node definition includes an identifier of network location from which an electronic file represented by the at least one packaged file presentation node is retrievable. The method 800 further includes receiving 804 input to view the electronic file represented by the at least one packaged file presentation node and retrieving 806 the electronic file from the network location identified in the packaged file presentation node definition. The retrieved 806 electronic file may then be presented 808.
In some embodiments, the method 800 may further include receiving input modifying the presented electronic file retrieved 806 from the network location and updating the electronic file at the network location. Updating the electronic file may include transmitting data representing the received input modifying the presented electronic file over a network to the network location.
The retrieved 806 electronic file may be packaged within the PDLD in association with the package file presentation node definition and stored. Upon a subsequent receipt 804 of input to view the electronic file, the electronic file may simply be read from the PDLD rather than retrieving 806 the electronic file again. However, an application implementing the method 800 in such embodiments may still retrieve data from the network location when updates to the electronic file or the PDLD are available. In such instances, data representing updates are retrieved and one or both of the electronic file and page description language are updated accordingly. The data representing the updates may include data representative of additions, deletions, and other modifications of electronic files represented as packaged file presentation nodes within the page description language document. The data representing the updates may also include data representative of additions, deletions, and other modifications to the electronic file.
In the foregoing Detailed Description, various features are grouped together in a single embodiment to streamline the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the inventive subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive subject matter lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby incorporated into the Detailed Description, with each claim standing on its own as a separate embodiment.
It will be readily understood to those skilled in the art that various other changes in the details, material, and arrangements of the parts and method, stages which have been described and illustrated in order to explain the nature of the inventive subject matter may be made without departing from the principles and scope of the inventive subject matter as expressed in the subjoined claims.
In the foregoing detailed description, numerous specific details are set forth to provide a thorough understanding of claimed subject matter. However, it will be understood by those skilled in the art that claimed subject matter may be practiced without these specific details. In other instances, methods, apparatuses or systems that would be known by one of ordinary skill have not been described in detail so as not to obscure claimed subject matter.
Some portions of the foregoing detailed description are presented in terms of algorithms or symbolic representations of operations on data bits or binary digital signals stored within a computing system memory, such as a computer memory. These algorithmic descriptions or representations are examples of techniques used by those of ordinary skill in the data processing arts to convey the substance of their work to others skilled in the art. An algorithm is here, and generally, is considered to be a self-consistent sequence of operations or similar processing leading to a desired result. In this context, operations or processing involve physical manipulation of physical quantities. Typically, although not necessarily, such quantities may take the form of electrical or magnetic signals capable of being stored, transferred, combined, compared or otherwise manipulated. It has proven convenient at times, principally for reasons of common usage, to refer to such signals as bits, data, values, elements, symbols, characters, terms, numbers, numerals or the like. It should be understood, however, that all of these and similar terms are to be associated with appropriate physical quantities and are merely convenient labels. Unless specifically stated otherwise, as apparent from the following discussion, it is appreciated that throughout this specification discussions utilizing terms such as “processing,” “computing,” “calculating,” “determining” or the like refer to actions or processes of a computing platform, such as a computer or a similar electronic computing device, that manipulates or transforms data represented as physical electronic or magnetic quantities within memories, registers, or other information storage devices, transmission devices, or display devices of the computing platform.
