Privacy Policy
Last updated: 7 November 2026
Signature Maker: Sign PDFs is an app from Itworked Systems, a company registered in Türkiye. This page explains what the app does with information. In short: your signatures, photos and PDFs never leave your phone. The only connection the app makes is an anonymous check of Signature Maker Pro purchases through Adapty.
- Your signatures, photos and PDFs stay on your phone and are never uploaded.
- There are no accounts, no ads and no tracking. The app does not use advertising IDs and does not ask to track you.
- Signature Maker Pro is sold through the App Store or Google Play. To show the plans and to know whether you have Pro, the app uses Adapty with an anonymous ID (details below).
- Everything free in the app also works offline.
What stays on your phone
- Your saved signatures: the pen strokes you drew, or the name you typed with the style and ink colour you chose. They are saved in the app's own storage.
- Photos and PDFs you pick: you choose them with your phone's own photo picker or file browser, so the app only sees the one item you pick. It opens it on your phone to show it and to place your signature, and keeps a temporary copy in its cache while you work. The signed copy it makes is also created on your phone.
We cannot see any of this. Deleting a signature in the app removes it; deleting the app removes everything it saved. Your phone's own backup (iCloud or Google) may include the app's data, under Apple's or Google's terms.
Purchases: Adapty
Signature Maker Pro is an optional subscription. Payment is handled by Apple or Google; we never see your payment details. To show the Pro plans and to unlock Pro, the app uses Adapty (Adapty Tech Inc.), a service provider that processes this data for us:
- A random ID made for this install of the app (and on iPhone, Apple's vendor ID). It is not linked to your name, email or store account, and it is not used to track you across apps or websites.
- Purchase history: which Pro plan you bought, when, and whether it is active, as reported by the App Store or Google Play.
- App interactions: for example that the app was opened or the Pro plans were shown, used to count how the paywall performs.
- The app turns off Adapty's collection of IP addresses and advertising IDs. Your signatures, photos and PDFs are never sent to Adapty.
The legal basis is the performance of the purchase you ask for and our legitimate interest in running the shop. Adapty keeps the data on servers that may be outside your country, under its own privacy policy (adapty.io/privacy). You can ask us to delete it by writing to the address below with the anonymous purchase ID shown in the app under About.
Permissions
- Photos (add only): asked for only when you tap Save to put a signature or a signed photo into your photo library. The app cannot read your library with it.
- Picking a photo or a PDF uses the system picker, which needs no permission: you hand the app one item.
- The app does not use the camera, microphone, location or contacts.
When you choose to share
The Share buttons open your phone's share sheet with the signature image, the signed photo or the signed PDF. Where it goes (an email, a message, Files, another app) is your choice, and the app or service it goes to handles it under its own terms. The links to this website open in your browser.
Data controller and your rights
Itworked Systems is the data controller under Turkish data protection law (KVKK, Law No. 6698) and, for users in the EU and the UK, the GDPR. The only data processed about you is the anonymous purchase data described above. You can ask us for access to it or for its deletion, and write to us with any question about your rights, and you can complain to Türkiye's Personal Data Protection Authority (Kişisel Verileri Koruma Kurumu) or, if you live in the EU or the UK, to the data protection authority where you live.
Children
The app is a general tool, not made for children. We do not knowingly process data from children.
Changes
If the app starts handling other data, we update this page and the date at the top before that version is released.