ComPDF

ComPDF

PDF Technologies, Inc.
PDF Conversion SDK

PDF Conversion SDK

Visual Integrity Technologies
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+

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About

ComPDF, powered by KDAN (TPEx: 7737), is built on the vision of “Leading the Intelligent PDF Era with Continuous Innovation”. ComPDF offers following products: - ComPDF SDK is highly compatible with web, server, desktop, and mobile platforms, seamlessly integrating with various development frameworks. It provides features lincluding generation, viewing, editing, conversion, signing, etc. - ComPDF Cloud delivers a secure, stable, and efficient service environment, simplifying enterprise document processing and business integration workflows. With the flexibility to use either Open API calls or private deployment, enterprises can generate, edit, convert, OCR recognize, and extract data. - ComPDF AI provides intelligent document processing capabilities, enabling automated data extraction, parsing, and knowledge management. Together, these components streamline workflows, improve operational efficiency, and accelerate enterprise digital transformation.

About

Add PDF Features with 2 API Calls Open, Edit, and View PDF. All that's needed is two API calls and a configuration file. Within a day, you can add, open, import, edit and view PDF features in your app. When formats don't match one-to-one, the SDK neutralizes the differences. This includes adding cropping, fills, color management and fonts. The PDF Conversion SDK processes all PDF versions including ISO Standard PDF 2.0. Any PDF from file or print-ready memory is valid input. Conversions flow straight through without intermediate steps or compromised quality. No printer driver. The PDF Conversion SDK runs on Windows, MacOS and Linux. It supports .NET. Example code included. Removes redundant information & compresses data. This ensures great performance for fast web and application viewing. Search for objects and text strings. Convert PDF to your native file format. Change the contents of a PDF page. Extract images from PDF. Retrieve metadata from PDF (layers, geospecification, etc).

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Supported
iPhone Supported
iPad Supported
Android Supported
Chromebook Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers looking to add PDF functionality to their or their company’s projects.

Audience

Software engineers, systems integrators, ISVs, OEMs and SaaS developers who want to add PDF functionality to their client and server apps.

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Contact us for pricing
Free Version Supported
Free Trial Supported

Pricing

$199 per year
Annual subscription provides support plus updates and new versions.
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 4.8 / 5
ease 4.5 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Pros & Cons from Real Users

Pros

  • ComPDF's conversion API has become integral to our document management platform. We process a high volume of incoming documents in various formats—Word, Excel, HTML—and need reliable, high-fidelity PDF conversion to deliver a consistent user experience. The batch processing API handles our peak loads with ease, and conversion quality far surpasses the open-source alternatives we benchmarked. What truly stands out is the API documentation: detailed, well-organised, and accompanied by practical code examples that significantly accelerated our integration. Response times are fast even under heavy load, and the error-handling callbacks made our pipeline more resilient.
  • We integrated ComPDF's PDF SDK—specifically the viewing, editing, annotation, and annotation reply features—to provide core functionality for our online learning platform. What stands out most is how seamlessly these features enable interactive collaboration between instructors and students. The annotation and reply capabilities function smoothly, allowing real-time feedback on assignments and course materials within a familiar PDF interface. The rendering quality is excellent, and the editing tools are intuitive, which has significantly enhanced user engagement across our learning programs.
  • As a user who has integrated the ComPDF SDK into our company's internal system, I appreciate how smoothly it fits into our existing infrastructure. The SDK is well-architected, making the integration process straightforward even for our internal engineering team. Once deployed, it has handled our document processing workloads—including batch conversions, PDF generation, and data extraction—with impressive stability. The consistency of output quality means we can trust it as a core component of our internal toolchain without constant monitoring or manual intervention.
  • The flexibility of the on-premise SDK has been a game-changer for us. Due to our strict data compliance policies, we cannot send sensitive documents to the cloud. ComPDF's SDK allowed us to deploy the entire processing engine behind our own firewall without losing any functionality. The backend batch processing—such as OCR, redaction, and format conversion—is stable, efficient, and maintains excellent fidelity even with complex document layouts.
  • The API documentation is incredibly thorough, which made integration smooth and fast. We connected our core systems to ComPDF's conversion engine in just a few hours. On the backend, batch processing of PDFs—including conversions, merges, and data extraction—has been rock stable. Even during peak loads, the response times remain consistent, and the error rate is near zero.

Cons

  • Advanced options for controlling specific conversion nuances—such as handling uncommon fonts or complex Excel chart rendering—required some trial and error. A dedicated "advanced configuration" section in the documentation would help teams tackle these edge cases more efficiently.
  • The SDK offers extensive functionality, but managing the interaction between multiple features—such as synchronizing annotations across different user sessions—required additional development effort. While the individual components work well, clearer documentation on handling real-time collaboration scenarios would have helped streamline the implementation. Some advanced UI customization options also took time to discover and configure properly.
  • The SDK comes with extensive functionality, but the documentation could be more structured for internal integration scenarios. We occasionally had to dig through different sections to understand how certain modules interact when building a custom backend pipeline. More comprehensive integration examples or architecture guides would help streamline the setup process for teams building internal systems.
  • The initial resource planning for deployment required several consultations with the support team to get the hardware configuration right. A more automated deployment guide or a scaling calculator would be a helpful addition for future updates.
  • While the documentation is strong, having more detailed business use-case examples (beyond basic technical implementations) would help accelerate the initial setup for teams with less API experience.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Supported
Live Online Supported
In Person Not Supported

Company Information

PDF Technologies, Inc.
Founded: 2014
Singapore
www.compdf.com

Company Information

Visual Integrity Technologies
Founded: 1993
United States
visual-integrity.com/pdf-sdk/pdf-conversion-sdk/

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Categories

PDF APIs Supported
PDF SDK Supported

Categories

CAD Data Exchange Supported
PDF Supported
PDF APIs Supported
PDF Converters Supported
PDF Generators Supported
PDF SDK Supported

PDF Features

Annotations Supported
Convert to PDF Supported
Digital Signature Not Supported
Encryption Supported
Merge / Append Supported
PDF Reader Supported
Watermarking Supported

Integrations

Adobe Acrobat Not Supported
AutoCAD Not Supported
Azure API Apps Not Supported
BricsCAD Not Supported
Microsoft 365 Not Supported
PDF Reader Pro Supported
Vectorworks Architect Not Supported
Vectorworks Designer Not Supported
Visual Studio Not Supported

Integrations

Adobe Acrobat Supported
AutoCAD Supported
Azure API Apps Supported
BricsCAD Supported
Microsoft 365 Supported
PDF Reader Pro Not Supported
Vectorworks Architect Supported
Vectorworks Designer Supported
Visual Studio Supported
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