Public sector · Transparency · Local AI in the EU
Document anonymization for municipalities
Anonymize minutes, decrees and case files before the transparency portal. Local AI in the European Union, no external LLM APIs, aligned with GDPR and personal-data minimization.
Transparency without exposing personal data
Municipalities publish plenary minutes, decrees, sanctions, licences and social-services documentation. Each file may contain IDs, addresses, signatures or references to residents and staff. Manual review before the transparency portal consumes hours and multiplies error risk.
Anonimatum detects and redacts personal data in PDFs and office documents with local AI on EU servers. It does not send content to OpenAI, Google or other external LLM APIs. You review the preview, apply whitelists when elected officials or other data must stay visible, and publish with judgment.
Politeia Soft operates the product. The municipality remains the data controller: the platform enables the technical processing; the legal basis and publication procedure are defined by your organization.
Go deeper in our 2026 practical guide to anonymization for municipalities.
Municipal use cases
Typical flows for transparency, secretariat, DPO, social services, urban planning and procurement.
Plenary minutes
Prepare the publishable version by hiding references to natural persons while keeping what must remain visible under your criteria (for example elected officials).
Decrees and resolutions
Anonymize identifying data before uploading decrees and resolutions to the transparency portal or electronic noticeboard.
Sanction proceedings
Reduce personal data in sanctions and administrative procedures when they must be shared or published with safeguards.
Social services
Protect dependency reports, benefits and sensitive files with human review before any exchange.
Urban planning
Building permits, planning resolutions and case files with cadastral or owner data, ready for minimization.
Public procurement
Specifications, awards and bidder documentation: anonymize what is needed without inventing metrics or legal shortcuts.
What gets anonymized
Starting from the «Municipal resolution with notification and CSV» template:
Name, ID number and contact details of the person concerned
AI option «GDPR anonymization» and the [G] DNI / NIF pattern on scans
Home and notification address
AI option «Addresses»
Verification codes (CSV), QR codes and e-signature stamps
AI option «QR codes and digital signatures»
Recurring parties (companies, associations)
Your own word set added to the template
What must stay visible: amounts, dates, case number and officials
Left out of the selection or whitelisted
Fictitious document
Before and after: mayoral resolution
Fictitious sanction resolution (made-up names, ID, address, CSV and QR). Black redaction without text, as the template produces.
How it was done
- «Municipal resolution with notification and CSV» template (GDPR anonymization, Addresses, QR codes and digital signatures).
- The office («Mayor») stays visible; the signatory's name is hidden unless you whitelist it.
- Case number, date, offence and amount stay visible.
Mock-up image built from a synthetic PDF: it reproduces the selection of the options listed, it is not an engine screenshot.
Templates and features used
«Municipal resolution with notification and CSV» template
Keeps amounts, dates, case number and officials visible; hides the person concerned, notification, CSV, QR and stamps.
«Contract with side signature stamps» template
For procurement: hides signatories and addresses, keeps subject, price and deadlines.
«Audit report (ENS, ISO)» template
Publish audit reports without personal data and with dates visible.
Whitelist and reverse anonymization
Keep elected officials or the signing body visible.
Batches and OCR
Process the weekly batch of decrees, scans included.
Regulations that usually apply
- UK GDPR, DPA 2018 and EU GDPR
- Data minimisation: publish only the personal data needed for the purpose. The same principle applies to authorities in the EU under the EU GDPR.
- FOIA 2000 and EIR 2004
- Information requests are balanced against data protection: third parties' personal data can be withheld under section 40 FOIA or regulation 13 EIR, and the rest of the document is usually released with it redacted.
- Spanish National Security Framework (ENS)
- Politeia Soft holds an ENS Medium category certification whose scope includes Anonimatum.
- Note
- Guidance only, not legal advice. Deciding what to publish or share, and on what legal basis, is up to the data controller.
Why local AI in the EU, not external APIs
Same product foundation as other Anonimatum landings: data control and operational compliance.
Proprietary NLP in the EU
Anonymization engine with local AI on European infrastructure. No reliance on uncontrolled external LLM APIs for your document content.
OCR for scans
Scanned PDFs and digitized paper: OCR in the anonymization flow when text is not native.
Batches and traceability
Process PDF and ZIP remittances on the server when transparency or case volume exceeds a single file.
Patterns and wordsets
Complement AI with patterns, word sets and whitelists for recurring municipal document types.
How it works
Upload the document or batch
PDF, Office or ZIP. Include minutes, decrees or full remittances according to your flow.
Detect with local AI and rules
Local AI in the EU, patterns and whitelists. Preview matches before redacting.
Review and adjust
Include or exclude matches. Keep elected officials or other data that must remain visible.
Export and publish
Download the anonymized version and upload it to the transparency portal or document management system.
Compliance: GDPR and transparency
Anonimatum helps minimize identifying data before publishing or sharing. It does not by itself guarantee regulatory compliance: the balance between transparency and data protection is defined by your internal procedure and legal judgment.
- Processing with local AI in the European Union, without external LLM APIs for the core detection engine.
- The municipality is the data controller; Politeia Soft operates the Anonimatum technical tool.
- Whitelists and human review so you do not hide what the rules or your policy require to remain visible.
Frequently asked questions for municipalities
How do we anonymize plenary minutes or decrees before the transparency portal?
Upload the PDF (or batch) to Anonimatum, review personal-data detection with preview, and export the anonymized version before publishing. You can combine local AI, patterns and whitelists (for example elected officials) so you do not hide what the rules require to remain visible.
Does it support both GDPR and transparency law obligations?
Anonimatum is a technical tool that helps minimize identifying data before publishing or sharing, aligned with the GDPR. Transparency duties and the balance with data protection are defined by your internal procedure; the platform does not replace the municipality’s legal judgment.
Can we use whitelists for elected officials or other data that must stay visible?
Yes. With whitelists and reverse mode you can keep names or references that must remain visible (for example elected officials in minutes) and anonymize the rest. Configuration is validated against representative documents from your organization.
On-premise or SaaS in the European Union?
Anonimatum is offered as SaaS with processing and local AI on European Union infrastructure, without sending documents to external LLM APIs. If your organization compares deployment models, see our on-premise vs SaaS in the EU guide and discuss the concrete scope with Politeia Soft.
Can it integrate with the municipality’s document management system?
In the enterprise modality, the REST API can orchestrate submissions and result retrieval from internal systems. Integration scope is agreed with Politeia Soft based on your DMS and volume.
Who is the data controller?
The municipality (or body) is the data controller. Politeia Soft operates the Anonimatum product as a technical tool; the legal basis, internal procedure and publication decisions remain with your organization.
Anonymize municipal documentation with Anonimatum?
Tell us your document types (minutes, decrees, batches) and we will guide you on demo and quote. No public pricing: each organization has a different scope.