Method for generating a changeable digital document associated with a digital identity, said digital document will be stored in the form of a file on a mobile terminal of a user, characterized in that it includes at least the following steps: - a step of receiving, by a device equipped with an application configured to generate a digital document, personal data associated with the digital identity of a user and a step of generating E 3 a set of constituents intended to secure said digital document, on the basis of a model M, in the form of a file F 1, - a step of signing, by a data signature module, said digital constituents using a private key (PK priv, PK privsyst), in order to generate a first file F 1sp containing the signed and protected constituents of the digital document, - a step of signing (E 4), by said data signature module using said private key (PK priv, PK privsyst), the personal data originating from the digital identity in order to protect them and to generate a second file F 2sp, - a step of encrypting E 5 the protected personal data of the second file F 2sp by means of a public key (PK pub, PK pubsyst), - a step of calculating, by the application for producing the digital document, a hash fingerprint value for each of the files F 1sp and F 2spc, a step of applying a link mechanism to said calculated hash values, and a step of transmitting (E 8) the hash values to said user for storage on the mobile terminal of said user, it being possible to visually consult the digital document in an application present on the mobile terminal of the user and configured for the consultation of data; and, when the user displays the digital document, a step in which the data originating from the file F 2sp are displayed and the digital security features described in the file F 1sp are dynamically applied to the pages of the document according to the configuration. - a step of receiving, by a device equipped with an application configured to generate a digital document, personal data associated with the digital identity of a user and a step of generating E 3 a set of constituents intended to secure said digital document, on the basis of a model M, in the form of a file F 1, - a step of signing, by a data signature module, said digital constituents using a private key (PK priv, PK privsyst), in order to generate a first file F 1sp containing the signed and protected constituents of the digital document, - a step of signing (E 4), by said data signature module using said private key (PK priv, PK privsyst), the personal data originating from the digital identity in order to protect them and to generate a second file F 2sp, - a step of encrypting E 5 the protected personal data of the second file F 2sp by means of a public key (PK pub, PK pubsyst), - a step of calculating, by the application for producing the digital document, a hash fingerprint value for each of the files F 1sp and F 2spc, a step of applying a link mechanism to said calculated hash values, and a step of transmitting (E 8) the hash values to said user for storage on the mobile terminal of said user, it being possible to visually consult the digital document in an application present on the mobile terminal of the user and configured for the consultation of data; and, when the user displays the digital document, a step in which the data originating from the file F 2sp are displayed and the digital security features described in the file F 1sp are dynamically applied to the pages of the document according to the configuration.