The General Data Protection Regulation (GDPR) is the toughest privacy and security law in the world. Adopted by the European Union in 2018, it grants EU residents unprecedented control over their personal data and imposes strict obligations on any organization that processes it. For European businesses — and any company serving EU customers — choosing the right document tools is not just a matter of convenience; it is a legal necessity. In this guide, we explain how client-side document tools like Automarkly help businesses stay GDPR-compliant by keeping personal data inside the browser.
What Is GDPR?
GDPR (Regulation 2016/679) governs the collection, storage, processing and transfer of personal data belonging to individuals in the European Economic Area (EEA). Personal data includes any information that can identify a person directly or indirectly — names, email addresses, IP addresses, ID numbers, location data and more. Non-compliance can result in fines of up to €20 million or 4% of global annual turnover, whichever is higher.
Key GDPR principles include data minimization (only collect what you need), purpose limitation (use data only for stated purposes), storage limitation (do not keep data longer than necessary), integrity and confidentiality (process data securely), and accountability (be able to demonstrate compliance). Every tool a business uses to process personal data must support these principles.
Data Residency and Cross-Border Transfers
One of the most complex areas of GDPR is cross-border data transfer. When personal data leaves the EU/EEA, it must be protected by adequate safeguards — such as Standard Contractual Clauses (SCCs), Binding Corporate Rules (BCRs) or an adequacy decision from the European Commission. The 2020 Schrems II ruling invalidated the Privacy Shield, making transfers to the United States significantly more complex.
For businesses, this means that using a cloud-based document tool that uploads files to servers in the United States may require a legal transfer mechanism and a Data Processing Agreement (DPA). Even then, there is risk. The simplest way to avoid cross-border transfer issues entirely is to use tools that never transmit data at all.
Why Client-Side Tools Are GDPR-Safe
Client-side tools process data entirely in the user's browser using JavaScript and Web APIs. When you merge a PDF or compress an image using Automarkly's PDF Tools or Image Compressor, the file is loaded into your browser's memory, processed locally and then offered as a download. At no point is the file transmitted to a server.
This architecture provides several GDPR advantages:
- No data processing by a third party: Since no server receives the data, there is no data processor relationship to manage.
- No cross-border transfer: Data never leaves the user's device, eliminating transfer mechanism requirements.
- No data retention risk: When the browser tab is closed, all processed data is gone from memory.
- No breach exposure: A server cannot be breached for data it never received.
GDPR-Compliant Document Workflows
Here is how European businesses can use client-side tools for common document tasks while maintaining GDPR compliance:
Employee Onboarding Documents
Merge employment contracts, NDA forms and personal information sheets into a single PDF using Automarkly's merge tool. Since the files are processed in the HR officer's browser, no employee personal data is uploaded to a third-party server.
Customer Data Redaction
Before sharing documents externally, use the split tool to remove pages containing personal data. The remaining pages can be shared without exposing customer information, supporting the data minimization principle.
Secure Document Compression
Compress large scanned documents (passports, ID cards, utility bills) for email or secure portal upload. The compression happens locally, so the original high-resolution images never touch a remote server.
Best Practices for EU Businesses
- Audit your tool stack: Review every document tool your team uses. Replace server-based tools with client-side alternatives where possible.
- Train your team: Ensure employees understand which tools are approved for processing personal data and which are not.
- Use strong passwords: Protect local devices with strong passwords generated by Automarkly's Password Generator.
- Verify privacy policies: Even for client-side tools, check the privacy policy to confirm no telemetry or analytics tracks document content.
- Maintain records: Document your data processing activities, including which tools are used and why, to demonstrate accountability under GDPR Article 30.
GDPR compliance does not have to mean expensive enterprise software or complex legal arrangements. By choosing client-side tools like Automarkly's free online tools, European businesses can process documents efficiently while keeping personal data where it belongs — on the user's device. It is the simplest, safest path to compliance.