1. TuSDK offers SDK's for face recognition and image processing.

  2. Resize large photos in bulk

  3. Gravity Forms is one of the best and easiest contact form plugins to create modern forms for websites powered by widely-used WordPress.

  4. LightPDF is the best free online PDF tool that allows you to edit and convert PDF.

  5. Command-line PNG optimizer.

  6. PDFCreator converts every printable document to PDF and many other formats. Create professional PDFs with a few clicks and it's free. With many Professional Features: merge documents, send emails and more.

  7. Imgur is a free and simple image hosting service with image editing feature. Signup is optional.

  8. Documentation.

  9. Create PDF and convert documents to PDF for free with the free PDF24 PDF Creator.

  10. PDF Candy is an online service providing tools for handling PDF files.

  11. Tabs & Dual Panel. โ€ข Arrange folders on top. โ€ข Cut & Paste. Copy queue. โ€ข Global hotkeys.

  12. Blitline provides a platform for processing (cropping, rotating, compositing, filtering) images in a massively parallel environment.