CutOptimizerLinear

CutOptimizer — an app for optimizing the cutting of sheet materials with automatic part placement calculation and PDF export.

Adobe Acrobat Reader is a PDF viewer with support for comments, signatures, and basic editing (in premium); operates in Russia with restrictions, requires registration and payment, with intrusive feature advertising.

CamScanner converts camera photos of documents to PDF/JPG with OCR and signature support, but most features require a paid subscription, and the free version is cluttered with ads and unstable.

Photomath is an app for scanning and solving math problems with step-by-step explanations via camera or manual input, but with unstable functionality and recognition issues in recent versions.

Adobe Scan is a mobile document scanner with OCR that automatically recognizes text and converts photos to PDF files; functionality is limited without a paid subscription, including export and document merging features.

TapScanner is a document scanning app that converts documents to PDF with OCR support, editing, and cloud synchronization, but requires a paid subscription even for basic use.

The app converts photos and scanned documents into PDF files with optional image editing, compression and password protection, working fully offline.

An app for taxi drivers and couriers that accepts orders through Yandex.Pro and Yandex.Eda platforms, but without user reviews it is impossible to confirm actual functionality.