PDF file font compression method and device and electronic device
A compression method and font technology, which is applied in the direction of electronic digital data processing, digital data information retrieval, special data processing applications, etc., can solve the problems of large memory space, occupation, and inability to embed font list compression, etc., to save size and reduce The effect of small memory usage
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0051] This embodiment provides a font compression method for PDF files, such as figure 1 Shown is the flowchart of the font compression method for PDF files, the method includes:
[0052] Step S102: Obtain an embedded font list and text content of the file to be compressed.
[0053] Generally, after the user edits any PDF file, there will be an embedded font list and text content in the PDF file, the embedded font list records multiple embedded fonts, and the text content records multiple text objects, and Each text object uniquely corresponds to an embedded font.
[0054] It is understandable that public fonts and embedded fonts are stored in the file to be compressed. Generally, when the font list in the font in the file to be compressed uploaded by web users is compressed, generally only the embedded font list can be compressed. The public font list cannot be compressed. Public fonts and embedded fonts are stored in the file to be compressed according to different encoding prin...
Embodiment 2
[0082] Corresponding to the foregoing method embodiments, this embodiment provides a font compression device for PDF files, as shown in Figure 3, the device includes:
[0083] The acquiring module 31 is configured to acquire the embedded font list and text content of the file to be compressed; the embedded font list records multiple embedded fonts; and the text content records multiple text objects.
[0084] The first extraction module 32 is configured to extract the text object and the embedded font corresponding to the text object from the text content according to the association relationship between each embedded font and each text object And the first character set corresponding to the embedded font.
[0085] The second extraction module 33 is configured to extract a second set of characters corresponding to the embedded font from the list of embedded fonts.
[0086] The comparison module 34 is configured to compare the first character set and the second character set, and obtain...
Embodiment 3
[0099] The embodiment of the present invention provides an electronic device, such as Figure 4 As shown, the electronic device includes: a memory 41 and a processor 42, where a computer program that can run on the processor 42 is stored in the memory 41, and the processor executes the computer program to implement the steps provided by the photo filing method of the power transmission line device.
[0100] Such as Figure 4 As shown, the device further includes a bus 43 and a communication interface 44. The processor 42, the communication interface 44, and the memory 41 are connected through the bus 43; the processor 42 is configured to execute executable modules stored in the memory 41, such as a computer program.
[0101] The memory 41 may include a high-speed random access memory (RAM, Random Access Memory), and may also include a non-volatile memory (non-volatile memory), for example, at least one disk memory. The communication connection between the system network element an...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More