Payslips · P60s · statements · client letters

Split your PDFs and give every file its own password. Without uploading a thing.

Drop in one combined PDF, tell Sealrift where each document starts, and it makes one AES-256 protected PDF per person, each with its own password from your CSV. It all happens in your browser.

Open Sealrift, free How it works

Free for up to 10 files a batch. No account. No cookies.

Nothing is uploaded. Your PDFs, CSV and passwords are processed in your browser's memory and never reach our servers.
Works with Wi-Fi off. Once the page has loaded, splitting and encryption need no internet connection.
Proves it. The app shows a live "Network requests made" counter while you work.

How it works

  1. Add your PDFs

    One combined PDF (for example 200 payslips) or many separate PDFs.

  2. Choose how to split

    Every N pages, by page ranges, or (Pro) automatically when the employee number changes, so a two-page payslip stays together.

  3. Choose the passwords

    Take them from a CSV column, or build them from a template such as {DOB:DDMMYYYY} or {NI_LAST4}{POSTCODE_NOSPACE}.

  4. Download the ZIP

    Sealrift checks every file has a password, encrypts each one with AES-256 and gives you a ZIP, plus a passwords report for your records.

Why Sealrift

Per-file passwords, in bulk

Batch tools in mainstream PDF software apply one password to everything. Sealrift gives each output its own password from your data.

No upload, by design

Payslips carry salaries and National Insurance numbers. Sealrift never receives them: the splitting and encryption code runs on your computer.

Checks before it exports

If any file is missing a password, or an ID is not in your CSV, export is blocked and the problem is listed.

Pricing

Free

£0

  • Split one combined PDF or add many PDFs
  • Split by page count or page ranges
  • A password per file from a CSV or a template
  • Missing-password check before export
  • Up to 10 output files per batch
  • ZIP download and a passwords report for your records
Open Sealrift

Bureau

£19 a month or £190 a year

  • Everything in Pro
  • For payroll bureaux and accountants
  • One licence for up to 5 devices in your organisation
Get Bureau

Prices are in pounds sterling and are the total you pay. Subscriptions renew until you cancel; cancel any time in the billing portal. There is no free trial of Pro: the free version is yours to try for as long as you like.

Questions

Does anything leave my computer?

No document, CSV or password ever leaves your browser. If you have a paid licence and use the web version, the app checks your licence once or twice a day by sending the licence key alone to sealrift.com. The browser extension never makes any network request.

Which PDF readers open the files?

Sealrift uses standard PDF AES-256 encryption (the PDF 2.0 method), which current versions of Adobe Acrobat Reader, macOS Preview and the Chrome, Edge and Firefox PDF viewers open.

Does it email the payslips?

No. Sealrift makes the protected files; you send them the way you already do. It does not send email and never will, which keeps your documents out of anyone else's systems.

How strong is the protection?

AES-256 is only as strong as the password. A date of birth alone can be guessed by someone who knows the person. For sensitive documents, combine two facts (for example the last four characters of the NI number and the postcode) and send passwords separately from the files. See Security.

Is there a browser extension?

Yes: the same app, packaged for Chrome and Edge. It needs no permissions and makes no network requests.