View and annotate PDFs with highlighting, underlining, text boxes, and freehand tools. text and images, merge files, compress, formats, and apply OCR. Redact, sign, and protect documents.
Measure ambient noise with a professional level using ITU-R 468 and A/B/C/Z weighting filters. Analyze audio frequencies in real time. Record and save levels for later review. Compare noise levels against standard thresholds.
Helps installers and DIYers calculate panel angles, size battery banks, and determine wire gauges. It generates professional PDF quotes and includes a compass for precise alignment with True North/South.
