Sigil
PDFs on your own machine
Open, search, merge, split and annotate. Redaction removes the pixels underneath. Password protection uses AES-256. Sign with your own certificate; the check reports whether the file is intact.
Open SigilRESEARCH · EDUCATION
Sigil opens, searches, annotates and redacts PDFs locally, and signs with your own certificate. Altovar Cloud holds the data in named regions. Auris signs your institution in, and Osprey publishes what you find.
Explore the architecture
PDFs on your own machine
IN THE PRODUCT
Windows and Linux. PDFs are opened, searched, annotated and redacted on your own machine.
OCR works when Tesseract is installed on the machine. Without it, Sigil does not offer OCR.
Object storage speaks the S3 API, from 250 GB to 5 TB. Storage Box covers the rest.
Auris connects to the institution's identity provider and provisions accounts from it.
THE SITUATION
The tools are fine. The seams are the problem.
THE PIECES
Documents, data, people and publishing.
FROM THE PRODUCT
Highlight a passage and annotate it, on your own machine.
ALTOVAR / 2026
01 — Scope
This sample document describes the services agreed for the research project.
02 — Access
Access to project documents is limited to the authorised team.
Sample signature preview
Interface reconstruction with sample data. Actions stay on this page.
Capabilities at a glance
Compare the pieces and what each one covers before defining your project.
| Component | Role | What it covers |
|---|---|---|
| Sigil | PDFs on your own machine | Open, search, merge, split and annotate. Redaction removes the pixels underneath. Password protection uses AES-256. Sign with your own certificate; the check reports whether the file is intact. |
| Altovar Cloud | Storage and servers in named regions | S3-compatible object storage, Storage Box, VPS, dedicated servers and managed databases. The region is shown on each order. |
| Auris | One login for the institution | SSO through SAML or OIDC, SCIM provisioning, custom roles per project, and an exportable audit log. |
| Osprey | Publish what you find | A headless CMS with a schema written in code. Public content is readable without a key, over REST, read-only GraphQL or a typed SDK. |
Your project
Choose the components you want to discuss. The summary follows your selection.
HOW IT STARTS
Install it on the machines that read and annotate. Nothing has to be uploaded.
Pick object storage or a server in a region you can name.
Add your identity provider to Auris and provision accounts with SCIM.
Model the content in Osprey and serve it to your site.
QUESTIONS
No. We do not offer GPU servers or a managed notebook environment.
No. Sigil is built for Windows and Linux.
No. It is a PDF signature made with your own certificate. There is no trust store, revocation check or timestamp, so it is not an eIDAS qualified signature.
Sigil works on your machine. The cloud products run in the regions shown at order, and some network services in front of them run on a global network. Ask us for the data map of the pieces you want.
Auris provisions through SCIM from your identity provider, so accounts follow your directory. We have not published a load figure for it.
WHAT THIS PAGE DOES NOT PROMISE
These are the limits, stated before you ask.
We do not offer GPU servers or a managed notebook platform.
No STIX or TAXII, no MISP, no sandboxes. This page covers documents, data, identity and publishing.
Sigil is built for Windows and Linux.
Sigil signs with your own certificate. It is not an eIDAS qualified signature.
We will go through the pieces with you and mark the ones you do not need.