ComPDFKit PDF SDK

ComPDFKit is the PDF SDK product of PDF Technologies. PDF Technologies has focused on PDF for years. The PDF solution ComPDFKit includes PDF SDK, Conversion SDK, Web Viewer, API Tools, Free Online Converter, and Document AI. We can also provide Software, SDK, and API solutions for industries like education, government, Construction, Aviation, etc.

ComPDFKit includes the PDF SDK and PDF API product we provided that allows developers or companies to integrate PDF editing, annotating, converting, form filling, digital signing, comparing, measuring, and redacting into any device.

ComPDFKit API: Make API requests and streamline your workflows with secure and reliable PDF API. It's easy to integrate PDF editing, PDF conversion, watermark, OCR, and more features.

ComPDFKit SDK: ï»¿ComPDFKit allows companies, organizations, small businesses, and developers to integrate viewing, annotating, editing, converting (PDF to/from Office, Images, HTML, RTF, CSV, PDF/A, etc.), filling, encrypting, merging, comparing, redacting, OCR, and signing PDF documents in their applications or products.

ComPDFKit Free Online Resources:

1.  ComPDFKit PDF API 

Sign up and Get 100 Free Files Processing Monthly. Allow you to edit & convert PDF files, split/merge/insert/rotate/delete/extract PDF pages, and process PDFs with OCR, image processing, form recognizer, layout analysis, trim correction, and stamp inspection.

2.  Online Tools for PDF Conversion

All are 100% free! Work with PDF in ComPDFKit online PDF tools to convert PDF files to/from docx, xlsx, pptx, png, jpg, html, txt, csv, rtf files, etc.

3. Web Demo for View & Edit PDF

View, Edit, Annotate, Compare, Sign, Encrypt, Decrypt, watermark PDF files, and Create/fill out PDF forms online for free.

ComPDFKit PDF SDK Key Features:

PDF Content Editing:
- Edit Text
- Edit Images

Viewer:
- Standard page display modes, including Scrolling, Double page, Crop mode, and Cover mode.
- Navigation with thumbnails, outlines, and bookmarks.
- Text search & selection.
- Zoom in and out & Fit-page.
- Switch between different themes, including Dark mode, Sepia mode, Reseda mode, and Custom color mode.
- Text reflow.

Annotations:
- Create, edit, and remove annotations, including Note, Link, Freetext, Line, Square, Circle, Highlight, Underline, Squiggly, Strikeout, Stamp, Ink, Sound
- Support for annotation appearances.
- Import and export annotations to/from XFDF.
- Support for annotation flattening.

Forms:
- Create, edit, and remove form fields, including Push Button, Check Box, Radio Button, Text Field, Combo Box, List Box, and Signature.
- Fill out PDF Forms.
- Support for PDF form flattening.

Document editor:
- PDF manipulation, including Split pages, Extract pages, and Merge pages.
- Page edit, including Delete pages, Insert pages, Crop pages, Move pages, Rotate pages, Replace pages, and Exchange pages.
- Document information setting.
- Extract images.

Security:
- Encrypt and decrypt PDFs, including Permission setting and Password protection.
- Create, edit, and remove header & footer, including dates, page numbers, document name, author name, and chapter name.
- Create, edit, and remove Bates numbers.
- Create, edit, and remove a background that can be a solid color or an image.

Redaction:

- Redact content like images, text, and vector graphics.

Watermark:

- Create, edit, and remove the watermark.

Conversion:

- PDF to Word.
- PDF to Excel.
- PDF to PPT.
- PDF to TXT.
- PDF to CSV.
- PDF to PDF/A.
- PDF to Image.
- PDF to RTF.
- PDF to HTML.

- PDF to PDF/A

Document Comparison:

- Overlay Comparison
- Content Comparison

Signatures:

- Digital Signatures (Sign with Digital ID, Verify Signature and Digital Certificates, Trust Signatures, Trust Certificate, Signature Appearance Setting).
- Electronic Signatures (Drawn, Image, Type Signatures).

Optimization:

- Compress: Reduce PDF document size with no or minimum visual quality loss.

Measurement:

- Create and edit distance, perimeter, area, angle, diameter, radius, and volume measurement annotations.
- Change the scale and precision of measurement annotations.