Features List ​

ComPDFKit provides various operational APIs and their respective parameters. You can find detailed explanations in the Feature List section.

Annotations ​

• Create, edit, delete, and reply to annotations. These annotations include annotation types such as highlight, underline, strikethrough, stamp, link, text, line, rectangle, circle, squiggly line, freehand drawing, and audio.
• Support for adjusting the appearance of annotations.
• Import and export annotation data in XFDF format.
• Support for flattening annotations.
• Predefined annotation styles.

Forms ​

• Create, edit, and delete form fields, including buttons, checkboxes, radio buttons, text fields, dropdowns, list boxes, and signature fields.
• Fill in PDF forms.
• Support for flattening PDF forms.

Signatures ​

• Draw signatures.
• Image signatures.
• Typed signatures.

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.

Content Editor ​

• Add and remove text in a PDF programmatically, and edit the PDF similar to Word.
• Support for editing PDF images, such as moving, rotating, scaling, mirroring, cropping, replacing, copying, and extracting.
• Undo or redo any changes.

Security ​

• Encrypt and decrypt PDF, including setting permissions and password protection.

Watermark ​

• Add, remove, edit, update, and get the watermarks.
• Support text and image watermarks.

Compare Documents ​

• Content comparison (also known as side-by-side comparison).
• Overlay comparison (also known as superimpose comparison).

Conversion ​

• Convert from PDFs:

  • PDF to Word.
  • PDF to Excel.
  • PDF to PPT.
  • PDF to PNG.
  • PDF to JPG.
  • PDF to HTML.
  • PDF to TXT.
  • PDF to RTF.
  • PDF to CSV.
  • PDF to JSON.

• Convert to PDFs:

  • Word to PDF.
  • Excel to PDF.
  • PPT to PDF.
  • PNG to PDF.
  • JPG to PDF.
  • HTML to PDF.
  • TXT to PDF.
  • RTF to PDF.
  • CSV to PDF.
  • TIFF to PDF.

Document AI: ​

• OCR.
• Image Sharpening Enhancement.
• Form Recognizer.
• Trim Correction.
• Layout Analysis.
• Stamp Inspection.