In short

Your drawings, markups, settings, stamps and signatures stay on your computer. Cella PDF doesn't upload them anywhere, and there's no account. Cella PDF is made by Sorted Solution LLC, Seattle, WA.

What Cella PDF sends

Cella PDF sends nothing on its own except the checks and the usage statistics below.

Usage statistics and crash reports

Cella PDF sends us usage statistics through PostHog (PostHog Inc., stored in its EU region, Frankfurt): when the app starts, which tools and commands you use and how often, how many markups and measurements of each kind you make, the settings you change, which steps of a trial or purchase you reach, the AI assistants and sync sessions you use (how long and with how many people, never what's in them), when something fails (the kind of failure, never the message), how many pages and roughly how large the PDFs you open are, your app and operating system versions, and whether a trial or a license is active.

Before a license is entered they're tied to a random number made on your computer; once a license is entered, to the email address and name on the license, and to your firm (your email's domain). They never include file names, your drawings, markups or their text. On the Mac and the iPad, if the app crashes, the crash report (where in the app it happened, and the app and system versions) goes to PostHog too at the next launch. On the iPad, all of this is anonymous: it isn't tied to an email or a name, and the iPad doesn't send your location.

Turn it off in Settings (Options on Windows), under Share usage statistics. IT departments can turn it off for everyone with a policy or managed configuration.

Update checks

Cella PDF checks www.sortedsolution.com for updates once a day, and when you choose Check for Updates. Each check sends the app version, whether a trial or a license is active, and your operating system version. It doesn't include your name, an account, a device identifier or anything about your documents. Like any web request, it reaches our server from your internet address. You can turn automatic checks off in Settings.

Licenses and payment

Cella PDF is sold through our payment provider, Lemon Squeezy, which processes your payment and issues your license key under its own privacy policy; we don't receive your card details. When you enter a license key, the app sends the key and a name for your computer (as your computer reports it, for example "Office iMac (Mac)") to Lemon Squeezy's license service, so you can see and manage your devices and the device limit (one computer and one iPad) can apply. After that, the app re-checks the key with that service about once a day while it's in use. Removing a license from a computer tells the service to free that device. The 14-day trial doesn't contact anyone.

Cloud storage you connect

Connecting a cloud storage service is optional. You sign in on the service's own page in your browser, never inside Cella PDF, so Cella PDF never sees your password. Cella PDF then opens and saves your files directly between your device and that service. Nothing from your cloud storage is sent to Sorted Solution or shared with anyone. You can disconnect an account in Cella PDF at any time, and remove Cella PDF's access in your account settings with the service.

Google Drive

If you connect Google Drive, Cella PDF opens and saves your Drive files only on your own device. Cella PDF's use and transfer of information received from Google APIs will adhere to the Google API Services User Data Policy, including the Limited Use requirements. Cella PDF does not use Google user data for advertising, does not sell it, and does not use it to develop or train AI models.

Dropbox

If you connect Dropbox, Cella PDF reads your account name and the files and folders you browse, and reads and writes the files you open and save. That information stays on your device.

Microsoft OneDrive and SharePoint

If you connect OneDrive, Cella PDF reads your basic profile and the files and sites you browse, and reads and writes the files you open and save, through Microsoft Graph. That information stays on your device.

Cella PDF Server

If your office uses the sync server, Cella PDF sends markup changes, the PDFs you choose to upload to a project, your author name and, while you're connected, which sheet you're on, your pointer's position and what you've selected, to your office's server only. If your office runs the server itself, that data stays on your office's server and we never see it. If Sorted Solution hosts it for your firm, it is stored on a server we run for your firm and used only to provide the service, with nightly offsite backups kept 30 days. Where you are on a sheet is kept in the server's memory only and disappears when you disconnect. Sign-in tokens are kept on your computer (in the Keychain on the Mac). You can have your firm's data back whenever you leave.

AI assistants

Optional, and off by default. If you turn on AI Assistants in Settings and connect an assistant application, such as Claude Desktop or Claude Code, you are authorizing that application to read, through Cella PDF, the markups, comments, quantities and text of the documents you open and the folders you choose, and, only if you also allow it, pictures of sheets. The assistant is yours, not ours: Sorted Solution does not provide it and does not receive what it reads, and what it does with that content is governed by its own terms. Cella PDF lists every request an assistant makes in Window, then AI Assistant Activity, and turning the setting back to Off ends the connection.

This website

This website uses a web analytics service, Crafty Meerkat, to count visits and see which pages are read. It runs no advertising trackers. Like any website, the server that delivers it receives your internet address and the pages you request. Fonts are loaded from Google Fonts. When you send us a message through the contact form, we receive what you type and use it only to answer you. Buying takes you to our payment provider, which has its own policy.

Children

Cella PDF is a professional tool and isn't directed at children. We don't knowingly collect information from children.

Your choices and rights

You can turn usage statistics and update checks off in Settings. You can ask us what information we hold that is tied to your license email, and ask us to correct or delete it. Send us a message and we'll act on it.

Changes

If this policy changes, we'll update this page and its date.

Contact

Sorted Solution LLC, Seattle, WA. Send us a message through our contact form.