Mask & Mark: PDF Redactor

Prepare a document copy before you share it. Mask & Mark is a PDF redactor for hiding private information, adding purpose watermarks and reusing handwritten signatures.

REDACT PDF FILES AND PHOTOS
Black out details you do not need to share. Masks are burned into the exported page pixels, and PDF copies are rebuilt without the original searchable text layer or file attachments. Your imported originals stay unchanged.

ADD A PURPOSE WATERMARK
Mark a document copy with its recipient, intended purpose and date. Adjust watermark strength and apply it to every page or selected pages. Useful for application paperwork, contracts, rental documents, forms and statements.

DRAW ONCE, SIGN AGAIN
Draw your signature with multiple strokes and save it for later. Apply it to any document, drag it into position and resize it from the corners. You can also draw directly on a page or add an optional personal declaration.

KEEP EDITABLE DOCUMENTS
Create and manage multiple documents in one place. Search, sort, rename and reopen them to continue editing. Duplicate a document to edit a separate copy without changing the original. Starting or opening another document keeps your current edits.

ORGANIZE, REVIEW AND EXPORT
Import a PDF or supported images, or take a document photo. Add, reorder, rotate, crop and remove pages. Review every page, then share or save an image-based PDF. Share individual JPEG pages or save them together in a ZIP file.

ON-DEVICE PROCESSING
Document editing and file processing happen on your device. No account is required, and document content is not provided to advertising APIs. Saved documents and reusable signatures stay in this app until deleted or app data is removed.

ADS AND INTERNET USE
Full-screen ads may open when export or saving starts. Files still process if an ad is unavailable. Ads and consent services use the internet and may process advertising data. Cloud file providers and chosen sharing or storage apps follow their own practices.

SUPPORTED FILES AND LIMITS
Import unencrypted PDFs and supported images, including JPEG, PNG and WebP. Convert Word, Excel, PowerPoint and encrypted PDFs to a readable PDF or image first. Each document supports up to 40 pages and 128 MiB per input. Imported pages are resized to a maximum 2200-pixel long edge.

Exported copies do not retain searchable text, interactive forms or existing digital-signature validation. A drawn signature does not verify identity or certify a document. A watermark cannot prevent copying or forwarding. Review small text and recipient requirements before sharing. The interface is currently English.