ComPDFKit, a software development kit (SDK), consists of PDF SDK and PDF Conversion SDK. With this SDK, even developers with limited knowledge of PDF can quickly integrate professional PDF functions with just a few lines of code. ComPDFKit provides PDF Annotations, Format Conversion, Digital Signature, Smart Forms, OCR, redaction, and more capabilities. Our powerful and steady API tools allow developers to bring the functions they want to multi-platform softwares easily.

ComPDFKit PDF SDK: The Complete PDF Solutions
Generate the functions of creating, modifying, converting, merging, splitting PDF files with Objective-C, C#, C++, Swift, Kotlin, JavaScript and Java PDF library in your applications.

ComPDFKit Conversion SDK: The Full Range of Formats Converter
High-quality PDF Conversion SDK supports converting PDF from or to MS Office (Word, PowerPoint, Excel) and other formats like HTML, Text, CSV, RTF, PDF/A, Images, and more.

– 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.

– 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.

– Create, edit and remove form fields, including Push Button, Check Box, Radio Button, Text Field, Combo Box, List Box, and Signature.
– Fill 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.

– Encrypt and decrypt PDFs, including Permission setting and Password protected.
– Create, edit, and remove watermark.
– Redact content including images, text, and vector graphics.
– 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 background that can be a solid color or an image.

– PDF to Word.
– PDF to Excel.
– PDF to PPT.
– PDF to TXT.
– PDF to CSV.
– PDF to PDF/A.


Plan Price Details
ComPDFKit Free Free for use.


November 17, 2022

The best PDF SDK.

November 17, 2022

You can free trial of this PDF SDK. They have almost all the features of PDF editing.