Smallpdf

[I am Baas]

Online file conversions and processing

https://smallpdf.com/

[webfork]

Looks sharp ... all the features advertised:

• PPT to PDF
• PDF to PPT
• JPG to PDF
• PDF to JPG
• Excel to PDF
• PDF to Excel
• Word to PDF
• PDF to Word
• Merge PDF
• Split PDF
• Rotate PDF
• Unlock PDF
• Protect PDF

Edit: oh and there's also a non-free version that has a couple of extra goodies, primarily batch processing https://smallpdf.com/pricing