このパッケージ（pdfc-gui）がUbuntu 16.04で私のCA証明書を更新するのはなぜですか？

次の結果に基づいて、私がインストールしたアプリケーションが信頼できることを確認したいと思います。これがこの問題に関するアドバイスを得るための正しいプラットフォームであることを願っています！

このパッケージをインストールしました（pdfc - グラフィカルユーザーインターフェース）からここそして：

sudo dpkg -i pdfc-gui-21.4.225.deb

インストール中にSSL証明書が追加/更新されたことを確認しました（下記のインストール出力を参照）。
残念ながら、私はこれが私が心配しなければならない問題であることを知るのに十分なLinuxを知りません。

誰でもこの結果を私に説明できますか？

このパッケージを削除する必要がありますか？それでは、すべての変更が実際に元に戻されることをどのように保証できますか？

sudo dpkg -i pdfc-gui-21.4.225.deb
Selecting previously unselected package pdfc-gui.
(Reading database ... 734495 files and directories currently installed.)
Preparing to unpack pdfc-gui-21.4.225.deb ...
Unpacking pdfc-gui (21.4.225) ...
Setting up pdfc-gui (21.4.225) ...
Clearing symlinks in /etc/ssl/certs...
done.
Updating certificates in /etc/ssl/certs...
129 added, 0 removed; done.
Running hooks in /etc/ca-certificates/update.d...

Replacing debian:ACCVRAIZ1.pem
Replacing debian:Actalis_Authentication_Root_CA.pem
Replacing debian:AffirmTrust_Commercial.pem
Replacing debian:AffirmTrust_Networking.pem
Replacing debian:AffirmTrust_Premium.pem
Replacing debian:AffirmTrust_Premium_ECC.pem
Replacing debian:Atos_TrustedRoot_2011.pem
Replacing debian:Autoridad_de_Certificacion_Firmaprofesional_CIF_A62634068.pem
Replacing debian:Baltimore_CyberTrust_Root.pem
Replacing debian:Buypass_Class_2_Root_CA.pem
Replacing debian:Buypass_Class_3_Root_CA.pem
Replacing debian:CA_Disig_Root_R2.pem
Replacing debian:CFCA_EV_ROOT.pem
Replacing debian:COMODO_Certification_Authority.pem
Replacing debian:COMODO_ECC_Certification_Authority.pem
Replacing debian:COMODO_RSA_Certification_Authority.pem
Replacing debian:Certigna.pem
Replacing debian:Certum_Trusted_Network_CA.pem
Replacing debian:Chambers_of_Commerce_Root_-_2008.pem
Replacing debian:Comodo_AAA_Services_root.pem
Replacing debian:Cybertrust_Global_Root.pem
Replacing debian:D-TRUST_Root_Class_3_CA_2_2009.pem
Replacing debian:D-TRUST_Root_Class_3_CA_2_EV_2009.pem
Replacing debian:DST_Root_CA_X3.pem
Replacing debian:DigiCert_Assured_ID_Root_CA.pem
Replacing debian:DigiCert_Assured_ID_Root_G2.pem
Replacing debian:DigiCert_Assured_ID_Root_G3.pem
Replacing debian:DigiCert_Global_Root_CA.pem
Replacing debian:DigiCert_Global_Root_G2.pem
Replacing debian:DigiCert_Global_Root_G3.pem
Replacing debian:DigiCert_High_Assurance_EV_Root_CA.pem
Replacing debian:DigiCert_Trusted_Root_G4.pem
Replacing debian:E-Tugra_Certification_Authority.pem
Replacing debian:EC-ACC.pem
Replacing debian:Entrust.net_Premium_2048_Secure_Server_CA.pem
Replacing debian:Entrust_Root_Certification_Authority.pem
Replacing debian:Entrust_Root_Certification_Authority_-_EC1.pem
Replacing debian:Entrust_Root_Certification_Authority_-_G2.pem
Replacing debian:GeoTrust_Primary_Certification_Authority_-_G2.pem
Replacing debian:GlobalSign_ECC_Root_CA_-_R4.pem
Replacing debian:GlobalSign_ECC_Root_CA_-_R5.pem
Replacing debian:GlobalSign_Root_CA.pem
Replacing debian:GlobalSign_Root_CA_-_R2.pem
Replacing debian:GlobalSign_Root_CA_-_R3.pem
Replacing debian:Global_Chambersign_Root_-_2008.pem
Replacing debian:Go_Daddy_Class_2_CA.pem
Replacing debian:Go_Daddy_Root_Certificate_Authority_-_G2.pem
Replacing debian:Hellenic_Academic_and_Research_Institutions_RootCA_2011.pem
Replacing debian:Hongkong_Post_Root_CA_1.pem
Replacing debian:IdenTrust_Commercial_Root_CA_1.pem
Replacing debian:IdenTrust_Public_Sector_Root_CA_1.pem
Replacing debian:Izenpe.com.pem
Replacing debian:Microsec_e-Szigno_Root_CA_2009.pem
Replacing debian:NetLock_Arany_=Class_Gold=_Főtanúsítvány.pem
Replacing debian:Network_Solutions_Certificate_Authority.pem
Replacing debian:OISTE_WISeKey_Global_Root_GB_CA.pem
Replacing debian:QuoVadis_Root_CA.pem
Replacing debian:QuoVadis_Root_CA_1_G3.pem
Replacing debian:QuoVadis_Root_CA_2.pem
Replacing debian:QuoVadis_Root_CA_2_G3.pem
Replacing debian:QuoVadis_Root_CA_3.pem
Replacing debian:QuoVadis_Root_CA_3_G3.pem
Replacing debian:SecureSign_RootCA11.pem
Replacing debian:SecureTrust_CA.pem
Replacing debian:Secure_Global_CA.pem
Replacing debian:Security_Communication_RootCA2.pem
Replacing debian:Security_Communication_Root_CA.pem
Replacing debian:Sonera_Class_2_Root_CA.pem
Replacing debian:Staat_der_Nederlanden_EV_Root_CA.pem
Replacing debian:Staat_der_Nederlanden_Root_CA_-_G3.pem
Replacing debian:Starfield_Class_2_CA.pem
Replacing debian:Starfield_Root_Certificate_Authority_-_G2.pem
Replacing debian:Starfield_Services_Root_Certificate_Authority_-_G2.pem
Replacing debian:SwissSign_Gold_CA_-_G2.pem
Replacing debian:SwissSign_Silver_CA_-_G2.pem
Replacing debian:T-TeleSec_GlobalRoot_Class_2.pem
Replacing debian:T-TeleSec_GlobalRoot_Class_3.pem
Replacing debian:TWCA_Global_Root_CA.pem
Replacing debian:TWCA_Root_Certification_Authority.pem
Replacing debian:TeliaSonera_Root_CA_v1.pem
Replacing debian:Trustis_FPS_Root_CA.pem
Replacing debian:USERTrust_ECC_Certification_Authority.pem
Replacing debian:USERTrust_RSA_Certification_Authority.pem
Replacing debian:VeriSign_Universal_Root_Certification_Authority.pem
Replacing debian:XRamp_Global_CA_Root.pem
Replacing debian:certSIGN_ROOT_CA.pem
Replacing debian:ePKI_Root_Certification_Authority.pem
Replacing debian:AC_RAIZ_FNMT-RCM.pem
Replacing debian:Amazon_Root_CA_1.pem
Replacing debian:Amazon_Root_CA_2.pem
Replacing debian:Amazon_Root_CA_3.pem
Replacing debian:Amazon_Root_CA_4.pem
Replacing debian:Certum_Trusted_Network_CA_2.pem
Replacing debian:Hellenic_Academic_and_Research_Institutions_ECC_RootCA_2015.pem
Replacing debian:Hellenic_Academic_and_Research_Institutions_RootCA_2015.pem
Replacing debian:ISRG_Root_X1.pem
Replacing debian:SZAFIR_ROOT_CA2.pem
Replacing debian:TUBITAK_Kamu_SM_SSL_Kok_Sertifikasi_-_Surum_1.pem
Replacing debian:GDCA_TrustAUTH_R5_ROOT.pem
Replacing debian:GlobalSign_Root_CA_-_R6.pem
Replacing debian:OISTE_WISeKey_Global_Root_GC_CA.pem
Replacing debian:SSL.com_EV_Root_Certification_Authority_ECC.pem
Replacing debian:SSL.com_EV_Root_Certification_Authority_RSA_R2.pem
Replacing debian:SSL.com_Root_Certification_Authority_ECC.pem
Replacing debian:SSL.com_Root_Certification_Authority_RSA.pem
Replacing debian:TrustCor_ECA-1.pem
Replacing debian:TrustCor_RootCert_CA-1.pem
Replacing debian:TrustCor_RootCert_CA-2.pem
Replacing debian:Certigna_Root_CA.pem
Replacing debian:certSIGN_Root_CA_G2.pem
Replacing debian:emSign_ECC_Root_CA_-_C3.pem
Replacing debian:emSign_ECC_Root_CA_-_G3.pem
Replacing debian:emSign_Root_CA_-_C1.pem
Replacing debian:emSign_Root_CA_-_G1.pem
Replacing debian:Entrust_Root_Certification_Authority_-_G4.pem
Replacing debian:e-Szigno_Root_CA_2017.pem
Replacing debian:GTS_Root_R1.pem
Replacing debian:GTS_Root_R2.pem
Replacing debian:GTS_Root_R3.pem
Replacing debian:GTS_Root_R4.pem
Replacing debian:Hongkong_Post_Root_CA_3.pem
Replacing debian:Microsoft_ECC_Root_Certificate_Authority_2017.pem
Replacing debian:Microsoft_RSA_Root_Certificate_Authority_2017.pem
Replacing debian:Trustwave_Global_Certification_Authority.pem
Replacing debian:Trustwave_Global_ECC_P256_Certification_Authority.pem
Replacing debian:Trustwave_Global_ECC_P384_Certification_Authority.pem
Replacing debian:UCA_Extended_Validation_Root.pem
Replacing debian:UCA_Global_G2_Root.pem
Replacing debian:NAVER_Global_Root_Certification_Authority.pem
done.
done.
Processing triggers for desktop-file-utils (0.22-1ubuntu5.2) ...
Processing triggers for bamfdaemon (0.5.3~bzr0+16.04.20180209-0ubuntu1) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for gnome-menus (3.13.3-6ubuntu3.1) ...
Processing triggers for mime-support (3.59ubuntu1) ...
Processing triggers for hicolor-icon-theme (0.15-0ubuntu1.1) ...