Who we are
SpreadSplit is a macOS application for splitting double-page PDF spreads into individual portrait pages. It is developed and published as an independent app on the Mac App Store.
This Privacy Policy explains what information SpreadSplit accesses, why, and what it does with it. The short answer: SpreadSplit does not collect, transmit, or store any information about you or your files.
What data we collect
- ✗ Personal information (name, email, Apple ID)
- ✗ Usage analytics or behavioural data
- ✗ Crash reports or diagnostic logs sent to us
- ✗ Location data
- ✗ Device identifiers or fingerprints
- ✗ Contents of your PDF files
- ✗ File names, paths, or metadata
- ✗ Purchase or payment information
- ✓ Nothing. We collect nothing.
How SpreadSplit accesses your files
SpreadSplit runs inside Apple's App Sandbox. This means it can only access files that you explicitly open through the standard macOS Open dialog or drag onto the app window. It cannot browse your file system, access Downloads, Documents, or any other folder without your direct action.
When you open a PDF, SpreadSplit reads it into memory, processes it entirely on your Mac, and writes the output to a location you choose via the Save dialog. The file never leaves your machine.
com.apple.security.app-sandbox — sandbox enabledcom.apple.security.files.user-selected.read-write — read and write only files you choose
No other entitlements are requested. SpreadSplit does not request access to your camera, microphone, contacts, calendar, location, Photos library, or any other system resource.
System permissions requested
| Permission | Requested? | Reason |
|---|---|---|
| File system (user-selected) | YES | To open PDFs you choose and save the split output |
| Network access | NO | Not required — all processing is local |
| Camera | NO | Not used |
| Microphone | NO | Not used |
| Location | NO | Not used |
| Contacts | NO | Not used |
| Calendar | NO | Not used |
| Photos library | NO | Not used |
| Bluetooth | NO | Not used |
| Health data | NO | Not used |
Third-party services and SDKs
SpreadSplit uses no third-party SDKs, frameworks, or services of any kind. It is built entirely on Apple's own frameworks:
- ✓ PDFKit — Apple's built-in PDF rendering and processing framework
- ✓ SwiftUI — Apple's UI framework
- ✓ AppKit — Apple's macOS application framework
- ✓ CoreGraphics — Apple's 2D rendering engine (used for split-point detection)
- ✓ Combine — Apple's reactive framework
None of these frameworks collect personal data on our behalf. They are part of macOS and subject to Apple's own privacy practices.
What Apple may collect
SpreadSplit is distributed through the Mac App Store. Apple independently collects certain data related to App Store purchases and usage in accordance with Apple's Privacy Policy. This data is collected by Apple, not by SpreadSplit, and we have no access to it.
If you experience a crash, macOS may offer to send a crash report to Apple (not to us). This is governed by your macOS privacy settings under System Settings → Privacy & Security → Analytics & Improvements.
Children's privacy
SpreadSplit is rated 4+ on the Mac App Store. Because the app collects no data from anyone, it is safe for users of all ages. We do not knowingly collect any information from children or any other users.
Your privacy rights
Because SpreadSplit collects no personal data, there is no data to access, correct, export, or delete. You have complete privacy by default — no action is required on your part.
If you have questions about how macOS or the Mac App Store handles data, please refer to Apple's Privacy Policy and your macOS privacy settings.
Changes to this policy
If we ever change the privacy practices of SpreadSplit — for example by adding a feature that requires network access — we will update this policy before releasing that version and clearly communicate the change in the App Store release notes.
The current policy version and effective date are always shown at the top of this page.
Contact
If you have any questions about this Privacy Policy or SpreadSplit's privacy practices, you can reach us via the Mac App Store support link, or directly:
Use the Support URL on the Mac App Store listing, or file an issue on our GitHub repository.