A method and system for adding watermarks to online document previews based on a browser.

By using online browser preview methods and blockchain technology, the problems of information leakage and intellectual property infringement have been solved. Watermarking and accountability tracking have been implemented during the file preview process, protecting corporate information security and intellectual property rights.

CN113704708BActive Publication Date: 2026-05-26海看网络科技(山东)股份有限公司
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
海看网络科技(山东)股份有限公司
Filing Date
2021-08-27
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Employees can easily access classified documents, leading to information leaks, and companies cannot trace the cause of the leaks. Intellectual property is easily stolen, and existing technologies cannot effectively prevent information leaks and intellectual property infringements.

Method used

By using online browser previews, the system verifies user legitimacy and permissions, converts files into image sets and adds watermarks, utilizes blockchain to store and verify operation logs to prevent tampering, records browsing operation logs, and uses watermark IDs for querying and tracing responsibility.

Benefits of technology

It enables the addition of watermarks during file preview to prevent information leakage and intellectual property infringement, trace the responsible party, and prevent operation log tampering, thus protecting enterprise information security and intellectual property rights.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN113704708B_ABST
    Figure CN113704708B_ABST
Patent Text Reader

Abstract

This invention relates to a method and system for adding watermarks to online document previews based on a browser. The method includes: receiving a preview request from a user terminal; determining the user's legitimacy; determining if the user has permission to preview the requested file; extracting a unique identifier for the preview file from the request; retrieving the file from a database based on the unique identifier; obtaining the file's metadata, including file name, file type, and file size; determining the file type and converting it into an image set; converting the JPG image set into a JPG image set with watermarked text; responding to the user's request and displaying the JPG image set with watermarked text to the user; and recording browsing operation logs. This method can be used for certain confidential documents, pages displaying intellectual property or confidential information. When a file is screenshotted, photographed, or downloaded, a watermark will remain on the file surface, serving as a warning to those who might leak information to stop their actions. Even if the document is leaked, the responsible party can be traced.
Need to check novelty before this filing date? Find Prior Art