Capability Matrix
A detailed view of what ZingPDF already covers today, what depends on deployment context, and which areas are still planned.
ZingPDF already covers the core document editing, form, metadata, extraction, watermarking, encryption, and save workflows most .NET teams evaluate first.
Use this page when you want the detailed support matrix rather than the shorter homepage summary.
Detailed Scope
Capabilities are grouped the way teams usually evaluate a PDF library: document core, page content, forms, security and output, and package-level scope.
Document Core
| Capability | Status | Notes |
|---|---|---|
| Load existing PDFs from seekable streams | Available | Load existing documents from seekable streams. |
| Create blank PDFs | Available | Includes page creation APIs. |
| Get page counts and retrieve pages | Available | Page count and page access APIs. |
| Append, insert, delete, and merge pages | Available | Append, insert, delete, and merge operations. |
| Rotate pages | Available | Page-level and document-wide rotation. |
| Read and update document metadata | Available | Title, author, subject, keywords, creator, and dates. |
Page Content
| Capability | Status | Notes |
|---|---|---|
| Add text and image content | Available | Text and image placement through the page API. |
| Draw vector paths | Available | Path drawing with stroke and fill options through the page API. |
| Text watermarks | Available | Simple all-pages watermarking. |
| Extract text | Available | Text extraction API. |
| Register standard PDF fonts | Available | Document-level registration API for the standard PDF text fonts. |
| Register embedded TrueType fonts | Available | Document-level registration API for local TrueType font files and streams. |
| Google Fonts package | Available | Package for registering Google Fonts through the Google Fonts Developer API. |
Forms
| Capability | Status | Notes |
|---|---|---|
| AcroForm field enumeration | Available | Typed wrappers for terminal fields. |
| Inspect form field bounds | Available | Read full field rectangles for placement and layout workflows. |
| Text field read/write | Available | Read, set, and clear text field values. |
| Choice, checkbox, and radio selection | Available | Selection APIs exposed through option wrappers. |
| Signature field discovery | Available | Signature fields can be identified and inspected. |
| Inspect signature metadata | Available | Read signature presence, filter, subfilter, signer name, reason, and signing time. |
| Push-button caption and action inspection | Available | Read button captions, inspect primary action types, inspect URI or named actions, and list additional-action triggers. |
Security And Output
| Capability | Status | Notes |
|---|---|---|
| Compress and decompress stream content | Available | Compression and decompression APIs for supported streams. |
| Authenticate encrypted PDFs | Available | Password authentication for encrypted files. |
| Apply password protection | Available | Supports Standard security handler RC4-128, AES-128, and AES-256 output. |
| Decrypt to a plain latest revision | Available | Removes encryption from the latest saved revision. |
| Incremental save | Available | Writes a new revision and preserves prior document history. |
| Document history removal | Available | Rewrites the document so only the latest live objects are saved, removing prior incremental revision history. |
Packages And Roadmap
| Capability | Status | Notes |
|---|---|---|
| Cross-platform core library support | Available | Windows, Linux, and macOS, subject to runtime dependencies. |
| HTML-to-PDF package | Available | HTML-to-PDF package with browser automation requirements. |
| Execute push-button actions | Planned | Action execution is not exposed through the high-level API yet. |
| Digital signatures | Planned | Signature fields are discoverable; signing is not implemented yet. |
| Advanced appearance customization | Low-level API | Advanced or non-standard appearance work may require low-level PDF object access. |
| Redaction | Planned | Not implemented in the current release. |