Section:

Low-Level document editing (COS/SDF API) in Android

Working with low-level PDF APIs can enable a wide variety of customizations with PDF documents.

Apryse SDK offers the following benefits:

  • Full access to low-level PDF object model (also known as COS/SDF)
  • Seamless integration between high and low-level API
  • Functionality not available in the high-level API can be implemented using COS/SDF API

Get started

Adding custom information
To add custom information to an existing document.

A short introduction to PDF file format
An introduction to PDF file format.

SDF / COS object model
An introduction to SDF objects.

Filters and streams
An introduction to filters and streams.

Embedded Fonts
An introduction to embedded fonts.

Tools & utilities

PDF CosEdit
A windows GUI tool for low-level PDF editing to view, add, or edit information for an existing document.

Did you find this helpful?

Trial setup questions?

Ask experts on Discord

Need other help?

Contact Support

Pricing or product questions?

Contact Sales