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Name ISDOC Information System Document
Version 6.0.1
Other names  
Identifiers PUID:  fmt/1570
Classification Text (Mark-up)
Description ISDOC is a type of Extensible Markup Language (XML) file format specific for transfer of financial documents. It allows paperless exchanging of invoices and other documents, processing and portability among companies, public administration authorities and individuals. It was defined by “A Working group for Electronic Standards of data exchanging” in ICT Union (formerly SPIS). The “Declaration on common approach in the area of electronic invoicing in the Czech Republic” was signed on 16th October 2008. It represents a Czech customization of UBL standard ISDOC file enables enveloped signatures including advanced IETF/W3C XML digital signatures conforming to the ETSI XAdES specification. This signiture records the 6.0.1 version of ISDOC file format, developed in May 2014. More information about other versions can be found:
Byte order  
Related file formats Has priority over Extensible Markup Language (1.0)
Has priority over ISDOC Information System Document (5.x)
Is subsequent version of ISDOC Information System Document (5.x)
Is subtype of ISDOCX Information System Document (6.0.1)
Technical Environment  
Supported until  
Format Risk  
Developed by None.
Supported by None.
Source The National Archives of the Czech Republic / The National Archives of the Czech Republic
Source date 07 Dec 2021
Source description 11/2023 (v.115)- Max-offset modified for BOF signature to allow for more exact signature identification. Internally researched.
Last updated 14 Nov 2023
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