ASO keywords
Most repeated terms in the listing. Highlighted ones also appear in the title.
page7redaction6text6box4blackletter4export4page redacted3redacted content3log redaction3text layer3monthly yearly3day pass3file3redacted3document3import3log3legal3day3tool2still2underneath2pixels2content2
What's new in 1.0.3
Some cosmetic changes to help us continue provide valuable service
Released Sep 8, 2026. Current version shipped Sep 27, 2026.
Store description
Every other redaction tool draws a black box over the text. The box hides the words; it does not remove them. They are still in the file, selectable underneath.
Blackletter overwrites the covered pixels and re-encodes the page, so the redacted content is gone from the exported document. Built for attorneys and paralegals producing documents in US litigation, and it all runs on your device.
SCAN OR IMPORT
Capture pages with the camera, or import an existing PDF. Imported PDFs are flattened to images on the way in, so hidden text layers and annotations do not survive the import.
CROP AND STRAIGHTEN
The scanner gives you free-corner cropping and de-skew on every page, so a document photographed on a desk comes out square and readable.
DESTRUCTIVE REDACTION
Draw a box over what has to go, tap an identifier the app has already found, or work through assisted mode. The pixels underneath are overwritten in the stored image and the file is re-encoded on export. Nothing is left beneath the box to select, copy, or recover.
IDENTIFIER DETECTION
Blackletter flags likely SSNs, dates of birth, and account numbers on the page and offers to redact them, so you review a marked page instead of hunting for PII line by line. You confirm every redaction before it is applied.
BATES NUMBERING
Number a production sequentially. Set the prefix, the suffix, the starting number, how many digits it pads to, which corner it sits in, and the margin.
EXHIBIT STAMPS
Stamp pages from the built-in exhibit presets or with your own custom text, placed where you want it on the page.
REDACTION LOG
Every redaction is recorded with its page, its position, and the legal basis you assign to it. Export the log as its own file to support a privilege log or a redaction index.
FILING-READY EXPORT
Export a PDF with a searchable text layer rebuilt from the already-redacted image, so the text can only describe what is still visible on the page. Redacted content cannot come back through the text layer.
PRIVACY
There are no servers. Documents, redactions, and logs stay in the app's storage on your device. There is no account to create and nothing is uploaded. The whole workflow runs offline, so sensitive material never leaves your hands.
SUBSCRIPTION
Blackletter is a paid app. Monthly $14.99 or yearly $79.99, each with a 3-day free trial, or a 3-day pass at $4.99 that does not renew.
Payment is charged to your Apple Account at confirmation of purchase. Monthly and yearly subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before that period ends. Manage or cancel them in your Apple Account settings. Any unused portion of a free trial is forfeited when a subscription is purchased. The 3-day pass is a one-time purchase and does not renew.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Blackletter is a document tool. It does not give legal advice.
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