Before files meet AI

Mask what should not leave your device.

Review images, PDFs, copied text, Word and Excel files locally—then export a separate, prepared copy.

Download Preview — no email Try the free no-upload metadata checker

Windows x64 · v1.5.1 · English / 한국어 / 简体中文 · local processing

File Mask for AI · v1.5.1LOCAL

BiOVE File Mask for AI reviewing a detected region in a real Windows runtime

Real packaged app · no browser shell

No upload workflowFiles stay on the device you control.

New-copy exportOriginals are not overwritten.

Five file workflowsImage · PDF · Text · DOCX · XLSX

Human review requiredInspect every finding and export.

One app. Five private-file paths.

Choose the file type, review local suggestions, add or edit masks, and export a separate copy. The display below switches between actual v1.5.1 screens.

IMAGE WORKFLOW

Review a suggested region before masking it.

Local OCR can suggest sensitive-looking regions. You decide what to keep, edit or cover.

1Open an image.
2Review suggestions or draw a mask.
3Export a new metadata-clean copy.

What you buy is what you see.

These are captures of the packaged Windows build—not concept art, a landing-page mockup or a cloud service pretending to be local.

Actual PDF redaction workflow — **Page-by-page PDF masking**Place and verify masks before creating a new PDF.

Actual Office file workflow — **DOCX and XLSX review**Review readable content and supported document metadata.

Actual pasted text masking workflow — **Pasted-text masking**Prepare copied text before it enters another tool.

Privacy boundary

The processing boundary is your Windows device.

The masking workflows do not require a cloud account, remote AI API or file upload. Detection can miss content, so every result still needs human review.

No automatic overwriteExport creates another file.

No perfection claimOCR can miss or misread text.

No hidden subscriptionPaid editions are one-time purchases.

LOCAL
FIRSTBiOVE privacy tools

Preview first. Pay once when it fits.

The free Preview lets you inspect the real Windows workflow. Paid editions unlock clean and document exports for the stated user scope.

Start here

Windows Preview

Free

Real app and local review flow. Clean, PDF, Office, text and batch exports remain locked.

Download Preview — no email Prefer email delivery? Get it through Lemon Squeezy.

1 user

Individual

$29

For one named user on Windows devices they own or control.

Buy Individual

Named users

Team 10

$249

For up to 10 named users in one purchasing organisation.

Buy Team 10

Controlled deployment

Business 25

$499

For up to 25 named users and an access-controlled internal file share.

Buy Business 25

Windows x64. Current installers may show an unsigned or unknown-publisher warning. Verify the filename, version and official checkout path, then follow your organisation’s security policy.

Verify the Preview before opening it.

The checksum below was calculated from the exact Windows Preview attached to v1.5.1. Compare it after downloading; do not open a file with a different value.

Expected filename

BiOVE-File-Mask-for-AI-Preview-1.5.1-win-x64.exe

Size

90,366,008 bytes (about 86.2 MiB)

SHA-256

80A4851528368E6A6818FA21924D9CB06FD1B31D3B0C1CB6F69A75AF3D91638F

PowerShell: Get-FileHash .\BiOVE-File-Mask-for-AI-Preview-1.5.1-win-x64.exe -Algorithm SHA256

Practical privacy guides

Start from the file-sharing problem you need to solve, then try the same local Windows workflow in the free Preview.

FREE · EN/KO/中文

AI file privacy checklist

Complete a seven-step, no-upload check before sharing any file with ChatGPT or another AI tool.

Open the free checklist

Prepare files for ChatGPT safely

Review images, PDFs, text, Word and Excel locally before sharing with an AI tool.

Read the Windows guide

简体中文

Upload to AI after masking private file data locally

Check files on your Windows device and export a separate copy without uploading the original.

Read the Chinese guide

File-specific Windows guides

Start with the exact file type you plan to share, then test the same workflow in the free Preview.

PDF · WINDOWS

Mask a PDF before ChatGPT

Review every page locally and export a separate flattened PDF before sharing.

Read the PDF guide

EXCEL · WINDOWS

Remove sensitive data from XLSX

Process supported workbook content and metadata locally, then verify a separate copy.

Read the Excel guide

For privacy educators and software publishers

Recommend a useful workflow. Earn on eligible sales.

Join the public BiOVE affiliate program for File Mask purchases. Applications, tracking and payouts are administered by Lemon Squeezy.

30%eligible-sale commission

30 daystracking window

$10minimum payout

Apply as a BiOVE affiliate

Clear limits

Know exactly what the app does.

Does the app modify originals?

No. It creates a separate file only when you export.

Does it guarantee complete anonymisation?

No. OCR and detection can miss content. Review every page, mask and exported file before sharing.

Which languages are included?

The v1.5.1 interface supports English, Korean and Simplified Chinese. Local OCR supports English and Simplified Chinese.

What happens after purchase?

Lemon Squeezy provides the receipt and the versioned Windows download attached to your selected edition.

BiOVE File Mask for AI