Omni Sub vs OmniPDF

Acoustical simulation tool. Source interaction at low frequencies simulation. Sub arrays like Cardioid, end fired and more.

OmniPDF helps you quickly find PDF problems and fix them with combined tools and batch processing. Built for people who handle many files and don’t want to jump around in a full PDF editor: inspect the files, run a guided plan, review the results, and export when everything looks right. 【Smart Inspection】 • Checks common issues such as incorrect page orientation, blank pages, oversized files, password protection, leftover annotations, editable form fields, and file metadata • Provides clear, plain-language results explaining what each issue means and why it may matter 【Combined Fixes】 • Automatically builds a processing plan based on inspection results • Runs multiple steps in one go • Compare files before and after processing inside the app 【Batch Processing】 • Process multiple PDFs at once • Merge, split, compress, rotate, delete pages, extract pages, and more • Useful for contracts, application materials, reports, and scanned documents 【Everyday Tools】 • Merge, split, compress, and rotate PDFs • Delete, extract, and reorder pages • Encrypt or decrypt PDF files • Remove private metadata and leftover annotations • Redact sensitive text and information • Scan documents and convert photos to PDF • Add signatures, watermarks, and page numbers Inspect files, process them, preview the results, and compare before and after—all inside the app. OmniPDF — review the result first, then take it with you. Privacy Policy: https://zzthhj.github.io/OmniPDF/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/