| Cpdfunicodedata | UnicodeData.txt in parsed form |
| Cpdferror | Error handling |
| Cpdfdebug | Debugging tools |
| Cpdfjson | Read and write PDFs in CPDFJSON format |
| Cpdfstrftime | C-style strftime |
| Cpdfcoord | Parsing coordinates, numbers, positions etc. |
| Cpdfattach | File Attachments |
| Cpdfpagespec | Page specifications and ranges |
| Cpdfposition | Positions |
| Cpdfpresent | Presentations |
| Cpdfmetadata | Metadata |
| Cpdfbookmarks | Bookmarks |
| Cpdfpage | Working with pages |
| Cpdftruetype | Parse and subset TrueType fonts |
| Cpdfremovetext | Remove text from documents |
| Cpdfextracttext | Experimental text extractor |
| Cpdfembed | Embed a TrueType font in a PDF |
| Cpdffont | Fonts |
| Cpdftype | Experimental typesetter for cpdf |
| Cpdfaddtext | Adding text |
| Cpdfpad | Padding |
| Cpdfocg | Optional content groups |
| Cpdfsqueeze | Lossless compression |
| Cpdfdraft | Remove images |
| Cpdfspot | Spot colours |
| Cpdfpagelabels | Page labels |
| Cpdfcreate | Making new documents |
| Cpdfannot | Annotations |
| Cpdfxobject | XObjects |
| Cpdfimpose | Imposition |
| Cpdfchop | Chop |
| Cpdftweak | Miscellany |
| Cpdfprinttree | Print trees |
| Cpdfua | PDF/UA |
| Cpdftexttopdf | Text to PDF |
| Cpdftoc | Table of contents |
| Cpdfjpeg | JPEG Utilities |
| Cpdfjpeg2000 | JPEG2000 Utilities |
| Cpdfpng | Read PNG files |
| Cpdfimage | Images |
| Cpdfdraw | Draw on PDFs |
| Cpdfcomposition | Show composition of a PDF |
| Cpdfshape | Basic Shapes |
| Cpdfcolours | Standard CSS Colours |
| Cpdfdrawcontrol | Cpdfcommand draw control |
| Cpdfcommand | PDF Command Line Tools in library form |