Temporary processing only
PDFs are processed in secure, short-lived environments and deleted as soon as your audio is ready.
Privacy in plain language
Anonymous users can convert PDFs without sharing any personal information. If you create an account to purchase character credits, we store only your email address and credit balance — nothing more. PDFs and generated audio are never retained.
No tracking cookiesAutomatic deletionMinimal data collection
Transparent infrastructure
We clearly list the specialised providers we rely on and ensure they meet strict privacy standards.
Preferences stay local
Voice and playback choices live in your browser only. Clearing localStorage removes every trace.
What we collect — and what we don't
The service is designed to be minimal. Here is what we store depending on how you use it.
Anonymous users
No account, no email, no personal information collected. Use the free voices without identifying yourself.
Account holders
We store your email address and character-credit balance in Firebase Firestore. That is the full extent of account data.
No document storage
Uploaded PDFs and generated audio are deleted automatically after processing. We never retain your content.
No tracking or analytics
We do not use tracking cookies, marketing pixels, fingerprinting, or behavioural profiling.
How the service works
Every conversion follows the same short-lived sequence. Here's what happens from upload to audio playback.
Step 1
PDF processing
Your PDF is held temporarily while we extract the text. Once the text is captured, the file is purged automatically.
Step 2
Audio generation
We stream the generated audio straight to your device. No audio files are retained on our servers.
Step 3
Authentication (optional)
If you choose to sign in, Firebase Authentication manages your session. We receive only your email address and display name.
Step 4
Payment processing (optional)
Credit purchases are handled by Lemon Squeezy as Merchant of Record. We never see or store your payment card details.
Third-party service providers
Google Cloud (TTS & Document AI)
Provides secure text extraction and high-quality AI speech synthesis.
Firebase (Authentication & Firestore)
Manages user sign-in and stores account data (email and credit balance) on Google Cloud infrastructure.
Amazon Web Services (AWS)
Powers advanced neural text-to-speech generation via Amazon Polly.
DeepInfra / Replicate
Host specialised AI models for additional voice options.
Lemon Squeezy
Acts as Merchant of Record for all credit purchases, handling payment processing, tax collection, and refunds.
Data security
We protect every stage of the workflow, whether you use the service anonymously or with an account.
- HTTPS/TLS encryption protects every upload and audio stream.
- Processing happens inside isolated, access-controlled environments.
- Temporary files are deleted automatically after each conversion.
- Authentication tokens are transmitted securely and verified server-side.
- Payment card data is handled entirely by Lemon Squeezy; it never touches our servers.
- Rate limiting safeguards the platform against abuse.
- We enforce a 16MB upload cap to keep processing fast and predictable.
Your rights
- Clear your browser's localStorage to remove any saved voice preferences.
- Request deletion of your account and all associated data by emailing [email protected].
- Request a copy of the personal data we hold about you (email and credit balance).
- Lodge a complaint with your local data protection authority if you believe your rights have been violated.
Legal basis
- Legitimate interest in providing the PDF-to-audio conversion you requested.
- Consent granted when you upload a document for processing.
- Contractual necessity for account creation and credit purchases.
- Service provision obligations that require temporary handling of the file.
International transfers
- Some providers operate globally but follow strict contractual safeguards.
- Firebase stores account data in Google Cloud data centres; transfers outside the EEA are covered by Standard Contractual Clauses or equivalent mechanisms under the GDPR.
- Processing remains temporary regardless of location.
- We vet providers to ensure compliance with relevant privacy regulations.
Children's privacy
The service is not intended for children under 16. We do not knowingly collect personal information from children. If you believe a child has created an account, please contact us at [email protected] so we can remove it.
Keeping this document current
We update this policy whenever the service changes. The latest version will always live on this page with a refreshed "Last updated" date. Registered users will be notified of material changes by email.
Questions or feedback
Have a question about how your data is handled? Email us at [email protected] and we'll respond as quickly as we can.
Privacy by design, every time
Convert your PDFs to audio knowing the pipeline is short-lived, transparent, and built to forget. That's our promise.