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QUALIFIED TRUST SERVICES

Legally compliant digital signatures (eIDAS) to drive forward the digitalization of your business processes.

CORPORATE TRUST SERVICES

Cryptography-based trust services
to protect your digital identities,
data and business secrets.

Qualified electronic signature products based on eIDAS - legally binding and secure.

API GUIDE

Upgrade your application with electronic signatures by primesign.





DOCUMENT SIGNING API

Signing of PDF documents. primesign handles document processing and adds a visual signature stamp.

HASH SIGNING API

Signing of hash values. Your application handles document processing and provides the document viewer.

CASH BOX API

RKSV-compliant JWS- or raw signatures for cash box receipts.





primesign TRUST CENTER

All documents for our qualified trust services, certificate revocation list, root-/CA- certificates, etc.

RESOURCES

Fact sheets, product documentation and more.



Pearson Edexcel International A Level Chemistry Student Book 2 Answers Review

This feature is written from the perspective of an educational resource description, aimed at students, parents, or teachers. Unlock Your Path to an A*: Complete, Worked Solutions for Units 4 & 5 The transition from AS to A2 Chemistry is one of the biggest leaps in the International A Level curriculum. Student Book 2 dives deep into complex topics like organic synthesis, transition metals, entropy, and electrochemistry. But working through these challenging problems is only half the battle—the real learning happens when you check, correct, and understand your answers.