Law firms
Pleadings, contracts and evidence under professional secrecy. Verify the other party's signature before filing.
Digital sovereignty
Not everything needs
to surface.
Concealment is the first act of secrecy.
Before protecting the content, you must reduce the exposure of the information.
PDF tools
Process in your browser, without sending the PDF to any server.
Merge PDF
Combine several files in any order, with a preview of every page.
Compress PDF
Shrink files for e-mail or filing systems while keeping them readable.
Split PDF
Extract page ranges or break a case file into volumes.
Image to PDF
Photos of documents, scans and screenshots become one organised PDF.
in testingWord to PDF
Converts .docx documents to PDF in the browser, with embedded fonts and no upload.
PDF to Image
Export pages at high resolution for presentations and systems.
Protect PDF
Password and permissions with AES encryption, applied on your machine.
Convert to PDF/A
Long-term archiving under ISO 19005 (1b, 2b and 3b), with automatic visual check.
in testingVerify signatures
ICP-Brasil, gov.br, e-Notariado and Registro Civil: integrity, chain, revocation, timestamp and whatever changed after signing.
Document sovereignty · 100% in your browser
Your documents never leave your computer. Not even to us.
ARU PDF is the professional PDF suite designed from day one so that no file ever travels through third-party servers. Merge, compress, split, protect, convert to PDF/A and verify digital signatures, all executed on your own machine.
- 0 uploads
- 0 third-party servers
- 0 retention
- 16 languages
The problem
The first Google result is reading your company's documents.
In many large companies, the contract, the balance sheet, the expert report and the blueprint get sent to the first converter that shows up in search. The file leaves the company, sits on a server nobody can locate, under another country's laws, with a retention policy nobody has read.
It is not carelessness. It is the absence of a professional tool built so that the upload is never needed.
Typical online converter
Your file is uploaded, stored for hours or days, processed by people you don't know and sometimes used to train systems. You are trusting a promise.
ARU PDF
The file never leaves your computer. The code runs in the browser, and you can check that at any time. Not even we have access. It is not a promise: it is architecture.
Who it's for
Built for the people who answer for the document.
Law firms · Accounting practices · Industry · Companies and public bodies · Notaries · People who don't want their documents floating around
Accounting
Balance sheets, payroll and tax documents from dozens of clients, without passing through a server that isn't yours.
Industry and engineering
Blueprints, technical drawings, patents and reports: intellectual property that should not circulate.
Companies and public bodies
Data-protection compliance and security policies without blocking the people who need to edit a PDF.
Individuals
ID cards, receipts, medical results, lease agreements. Documents from your life that don't need to become someone's data.
The difference is not the feature list. It is where the file goes.
| Criterion | Typical online converters | ARU PDF |
|---|---|---|
| Where the file is processed | On third-party servers | In your browser, on your computer |
| What gets stored | Copies for hours or days, per the service's policy | Nothing. The file was never uploaded |
| Data jurisdiction | The server's, often unknown | Yours |
| Accounts and limits | Account, daily limit, maximum size | No account, no usage limit |
| Brazilian digital signatures | Rarely verified, or just "valid/invalid" | ICP-Brasil, gov.br, e-Notariado and Registro Civil, with chain, revocation, timestamp and later changes |
| PDF/A for archiving | Uncommon | ISO 19005-1b, 2b and 3b, with visual check |
| Works offline | No | Yes, once the page has loaded |
Plans
Free for everyone. Professional for those who answer for a team.
Since we don't process your files, we don't charge per file. We charge for what an organisation needs beyond the tool.
Personal
Free
- Every tool
- No account, no usage limit
- In 16 languages
Professional
[PRICE] /month
- Installable on your computer, works offline
- Batch processing and signature verification reports
- Your firm's stamp and watermark
- Invoice and priority support
Organisations
On request
- Deployment on your internal network, under your own domain
- Corporate login and per-team policies
- Training and data-protection compliance documentation
- Contract with SLA
An ARUKHAN product
We build an ecosystem where secrecy is possible.
Digital sovereignty is not a slogan: it is deciding, in every line of code, that data stays with whoever it belongs to. ARU PDF comes from the same foundation as ARU Assinador and ARU ELO, under the same rule. If not even we have access, nobody does.
Explore the ARUKHAN ecosystemQuestions every responsible person asks
Is the file really not sent anywhere?
No. All processing happens in your browser. The server delivers the page and the libraries; after that you can disconnect from the internet and keep working. Your browser's Network tab shows it.
How do you make money if you don't sell my data?
Through the Professional and Organisations plans: offline installation, batch processing, reports, your own branding, support and contracts. The basic tool is free and stays free.
Which digital signatures does the verifier recognise?
ICP-Brasil (every current root), gov.br, ICPEdu, e-Notariado and the Brazilian civil registry PKI (Registro Civil). It checks integrity, chain, revocation, validity period, timestamps and any change made after signing.
Is it suitable for long-term archiving?
Yes. PDF/A conversion follows ISO 19005 at levels 1b, 2b and 3b, and the result is checked visually page by page before delivery.
Can I run it on my company's internal network?
Yes. Under the Organisations plan, ARU PDF is deployed under your domain, inside your network, with no external dependency.
Edit your next PDF without handing it to anyone.
Open a tool. We don't ask for an e-mail, a card or your file.