VancePDF - As an AI OCR-driven PDF solution provider, VancePDF offers high-quality PDF processing services online.
Shrink Me - Compress images with one drag / click
PlutoPDF - A URL to PDF converter wrapped behind a simple API.
TinyPNG - Make your website faster and save bandwidth. TinyPNG optimizes your PNG images by 50-80% while preserving full transparency!
RatherListen - Convert URLs, PDFs, & photos to clear spoken audio
Watermark.ink - Online Photo Watermarker