Information processing apparatus, information processing system, method for processing information, and non-transitory recording medium
An information processing apparatus includes circuitry. The circuitry transmits document data in response to a request signal transmitted from an information processing terminal and requesting output of the document data. Based on an information signal transmitted from the information processing terminal and indicating information that is not described in a document indicated by the document data, the circuitry generates latent-image data as a latent image including the information signal and the document data. The circuitry outputs the latent-image data and the document data.
1. An information processing apparatus, comprising:
a processor configured to:
receive document data from a data server in response to a request signal transmitted from an information processing terminal, the request signal requesting output of the document data;
receive, based on an information signal transmitted from the information processing terminal, the information signal indicating information that is not described in a document indicated by the document data;
generate tamper-proof latent-image data which includes both the document data and the information signal;
create a composite image by combining the document data which is in a human readable form with tamper-proof latent-image data that is invisible or hardly visible to a human; and
output the composite image which was created.
2. The information processing apparatus according to claim 1 , wherein:
the processor is configured to generate the latent-image data for generating the latent-image readable by infrared light.
3. The information processing apparatus according to claim 1 , wherein:
the processor is configured to generate the latent-image data readable by ultraviolet light.
4. An information processing system comprising:
the information processing terminal; and
the information processing apparatus according to claim 1 , communicably connected with the information processing terminal.
5. The information processing apparatus according to claim 1 , wherein:
the processor is configured to generate the latent-image data for generating the latent image as a two-dimensional code.
6. A method performed by a processor for processing information, comprising:
receiving document data from a data server in response to a request signal transmitted from an information processing terminal, the request signal requesting output of the document data;
receiving, based on an information signal transmitted from the information processing terminal, the information signal indicating information that is not described in a document indicated by the document data;
generating tamper-proof latent-image data which includes both the document data and the information signal;
creating a composite image by combining the document data which is in a human readable form with tamper-proof latent-image data that is invisible or hardly visible to a human; and
outputting the composite image which was created.
7. The method according to claim 6 , wherein:
the generating the latent-image data generates the latent-image data which includes a two-dimensional code.