API reference
Every exported function, by area
The complete reference: every function's purpose, behavior, parameter semantics, return values and remarks — the manual's own entry, with the exact declarations you compile against in C, Delphi and C#.
Functions
1,276
logical functions (W/A variants grouped)
Areas
15
the manual's own volumes
Declarations
3
languages per function: C, Delphi, C#
Core SDK
383 functions
Graphics
114 functions
Fonts
82 functions
Text
70 functions
Images
45 functions
Annotations
95 functions
Forms
115 functions
Digital Signatures
16 functions
Encryption
12 functions
PDF/A & Conformance
52 functions
PDF/X & Prepress
6 functions
Printing
17 functions
Rendering & Viewer
130 functions
Reporting
64 functions
Import & Output APIs
75 functions
How to read these pages
Each function is shown by its logical name; the …A and
…W variants take UTF-8 and UTF-16 strings respectively,
and the bare name aliases the ANSI variant. Every page carries the
function's full entry from the reference manual — description,
parameters, return semantics, remarks and cross-references —
exactly as it ships in the 800-page PDF with every download.