DELAYED RENDERING OF CONTENT

• US 20150178248A1
• Filed: 12/20/2013
• Published: 06/25/2015
• Est. Priority Date: 12/20/2013
• Status: Active Grant

• Current Assignee: Documill Oy
• Original Assignee: Documill Oy
• Inventors: HANNINEN, Rami, KONNOLA, Mika, LAAKSO, Terho
• Granted Patent: US 9,412,187 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06T 11/60 Editing figures and text; Combining figures or text

Abstract

The invention relates to a computer implemented method for preparing content of a document, wherein a document file is received as an input, the content of the document file is parsed, the parsed content data items forming the content of the document file are classified into at least two separate categories. Further, within the method at least one of the following is performed for the classified parsed content data items: rendering the content data items classified in a first category into a raster canvas and storing the rendered content of the raster canvas into a raster image file, generating and storing a meta file comprising at least one preprocessed rendering instruction for at least one content data item classified in a second category. The invention also relates to a system configured to perform the method and a non-transitory computer readable medium storing computer program code.

Claims

1. A computer implemented method for preparing content of a document, the method comprising

receiving a document file as an input,

parsing the content of the document file,

classifying parsed content data items forming the content of the document file into at least two separate categories,

and within the method at least one of the following is performed for the classified parsed content data items:

rendering the content data items classified in a first category into a raster canvas and storing the rendered content of the raster canvas into a raster image file,

generating and storing a meta file comprising at least one preprocessed rendering instruction for at least one content data item classified in a second category.

2. The computer implemented method of claim 1 further comprising rendering data stored in the meta file comprising the at least one preprocessed rendering instruction for the at least one content data item classified in the second category in response to a request from an external entity.

3. The computer implemented method of claim 2 further comprising outputting the raster image file comprising the rendered content data items classified in the first category and the rendered meta file in one of the following manner:

single raster image, layered separate raster images, raster image and textual and lineart content expressed with HTML, CSS and web font files.

4. The computer implemented method of claim 1 further comprising delivering at least the generated meta file to an external party requesting it for rendering.

5. The computer implemented method of claim 1 wherein the classification of the parsed content data items forming the content of the document file into at least two separate categories is at least partly based on an analysis of a graphical complexity of each of the parsed content data items.

6. The computer implemented method of claim 1 wherein the at least one preprocessed rendering instruction for the metafile is created by reducing the amount of information of the content data items in the second category that is needed to express the graphical representation so that all used coordinate values are converted to destination raster pixel coordinate values.

7. A system for preparing content of a document comprising

one or more processors

a memory including computer program code

the memory and the computer program code configured to, with the processor, cause the system at least to perform:

receive a document file as an input,

parse the content of the document file,

classify parsed content data items forming the content of the document file into at least two separate categories,

and wherein the system is configured to perform at least one of the following for the classified parsed content data items;

render the content data items classified in a first category into a raster canvas and store the rendered content of the raster canvas into a raster image file,

generate and store a meta file comprising at least one preprocessed rendering instruction for at least one content data item classified in a second category.

8. The system of claim 7, wherein the system is further configured to render data stored in the meta file comprising the at least one preprocessed rendering instruction for the at least one content data item classified in the second category in response to a request from an external entity.

9. The system of claim 8, wherein the system is further configured to output the raster image file comprising the rendered content data items classified in the first category and the rendered meta file in one of the following manner:

single raster image, layered separate raster images, raster image and textual and lineart content expressed with HTML, CSS and web font files.

10. The system of claim 7, wherein the system is further configured to deliver at least the generated meta file to an external party requesting it for rendering.

11. The system of claim 7, wherein the system is configured to base the classification of the parsed content data items forming the content of the document file into at least two separate categories at least partly on an analysis of a graphical complexity of each of the parsed content data items.

12. The system of claim 7, wherein the system is configured to create the at least one preprocessed rendering instruction for the metafile by reducing the amount of information of the content data items in the second category that is needed to express the graphical representation so that all used coordinate values are converted to destination raster pixel coordinate values.

13. A non-transitory computer readable medium for storing computer program code that, when executed by a system, causes the system to perform a method for preparing content of a document comprising

receiving a document file as an input,

parsing the content of the document file,

classifying parsed content data items forming the content of the document file into at least two separate categories,

and within the system at least one of the following is performed for the classified parsed content data items:

rendering the content data items classified in a first category into a raster canvas and storing the rendered content of the raster canvas into a raster image file,

generating and storing a meta file comprising at least one preprocessed rendering instruction for at least one content data item classified in a second category.

14. The non-transitory computer readable medium of claim 13 further comprising a step of rendering data stored in the meta file comprising the at least one preprocessed rendering instruction for the at least one content data item classified in the second category in response to a request from an external entity.

15. The non-transitory computer readable medium of claim 14 further comprising outputting the raster image file comprising the rendered content data items classified in the first category and the rendered meta file in one of the following manner:

single raster image, layered separate raster images, raster image and textual and lineart content expressed with HTML, CSS and web font files.

16. The non-transitory computer readable medium of claim 13 further comprising delivering at least the generated meta file to an external party requesting it for rendering.

17. The non-transitory computer readable medium of claim 13 wherein the classification of the parsed content data items forming the content of the document file into at least two separate categories is at least partly based on an analysis of a graphical complexity of each of the parsed content data items.

18. The non-transitory computer readable medium of claim 13 wherein the at least one preprocessed rendering instruction for the metafile is created by reducing the amount of information of the content data items in the second category that is needed to express the graphical representation so that all used coordinate values are converted to destination raster pixel coordinate values.