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Developers

Practical guides for developers from industry experts.

[Solved] Adobe Acrobat not Trusting Qualified Timestamp QTSA
28 Aug
,
2024
26 May
,
2025
eID Authentication

[Solved] Adobe Acrobat not Trusting Qualified Timestamp QTSA

Margus Pala
By
Margus Pala
Read article
Scenic autumn forest landscape with vibrant foliage and sunlight filtering through trees
13 Oct
,
2023
26 May
,
2025
eSignatures

Working with Time Zones, Timestamps and Datetimes in Laravel and MySQL

Mats-Joonas Kulla
By
Mats-Joonas Kulla
Read article
Diagram showing PDF rectangle coordinates for digital document layout and design
21 Aug
,
2023
26 May
,
2025
eSignatures

Creating Visible Signatures with Apache PDFBox v2 Java Library

Mats-Joonas Kulla
By
Mats-Joonas Kulla
Read article
Client creation and server key activation process illustration for secure digital identity management
23 Mar
,
2023
26 May
,
2025
eSignatures

How Hash/Digest Signing Works for PDF (PAdES)

Margus Pala
By
Margus Pala
Read article
Belgium Certipost Root Certificates Digital Security Graphic
17 Dec
,
2021
26 May
,
2025
eID Authentication

Belgium eID card login broken - CyberTrust root expired

Margus Pala
By
Margus Pala
Read article
Convert XAdES to ASIC-E Container
29 Dec
,
2020
26 May
,
2025
eSignatures

Convert XAdES to ASIC-E Container

Margus Pala
By
Margus Pala
Read article
USB eToken for secure digital authentication and identity verification
17 Dec
,
2020
26 May
,
2025
eSealing

PKCS #11 RSA signature with OpenSC and Gemalto eToken 5110

Margus Pala
By
Margus Pala
Read article
XAdES eSignatures explained
,
12 Jun
,
2025
eSignatures

Creating XAdES Signatures: Developer Guide to XML-Based eSignatures

Margus Pala
By
Margus Pala
Read article
European Digital Wallet eID Easy Developers Guide
,
26 May
,
2025
EU Digital Identity Wallet
eID Authentication

Getting Started with Identity Wallet Development

Margus Pala
By
Margus Pala
Read article
1
EID Easy OÜ
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Estonia
14080014
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EE367700771002083464
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