PDF Editor - Sign, edit forms

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.

The app scans documents through the camera, automatically processes images and saves them as JPEG or PDF, supports OCR for Russian and other languages (with Cyrillic limitations), cloud synchronization and export to various services via subscription.

The app scans documents from a smartphone camera into PDF/JPEG with basic processing (brightness adjustment, cropping, filters), but recent versions have included intrusive advertising that makes the app often unusable.

PDFelement is a multifunctional PDF document application featuring editing, reading, scanning, OCR and AI tools, but functionality verification is not possible due to the absence of user reviews.

PDF Pro is an app for reading and annotating PDFs with a form editor and signature tool, but features an unstable interface (issues with saving reading position) and aggressive monetization of basic functions.

The app scans documents to PDF, offers basic editing (cropping, filters, rotation), OCR, and document signing; requires a paid subscription for most features and suffers from instability, lags, save bugs, and aggressive monetization.

App for creating and editing handwritten and text notes with support for PDF annotations, audio recordings, and cloud synchronization, but with serious data loss issues after updates.

PDFChef is a document scanning app for iPhone/iPad that converts camera images into editable PDFs with the ability to add text, signatures, and graphics. The app suffers from stability issues (crashes during saving, especially with large scans) and has concerns regarding crop quality and aggressive monetization.