API Reference

Complete class and method reference for DroidPDF.

com.droidpdf.core

PdfDocument

Method	Description
`PdfDocument(outputStream)`	Create a new PDF for writing
`PdfDocument(reader)`	Open an existing PDF for reading
`PdfDocument(reader, outputStream)`	Open for modification
`addNewPage(pageSize?)`	Add a blank page (default A4)
`getPage(index)`	Get page by 0-based index
`numberOfPages`	Total page count
`removePage(index)`	Remove a page
`movePage(from, to)`	Move a page
`close()`	Write and close the document

PdfPage

Method	Description
`width / height`	Page dimensions in points
`setRotation(degrees)`	Set rotation (0/90/180/270)
`addAnnotation(dict)`	Add an annotation
`addFont(dict)`	Register a font resource
`addXObject(obj)`	Register an image resource

PageSize

Constant	Size (points)
`PageSize.A4`	595 × 842
`PageSize.A3`	842 × 1191
`PageSize.A5`	420 × 595
`PageSize.LETTER`	612 × 792
`PageSize.LEGAL`	612 × 1008
`PageSize(w, h)`	Custom size

PdfReader

Method	Description
`PdfReader(inputStream)`	Parse an existing PDF
`getObject(objNum)`	Get a parsed object by number
`resolve(obj)`	Resolve indirect references
`getCatalog()`	Get the document catalog

TextExtractor

Method	Description
`TextExtractor(reader)`	Create from a PdfReader
`extractAll()`	Extract text from all pages
`extractFromPage(index)`	Extract text from one page
`search(query)`	Search text (case-insensitive)

com.droidpdf.content

PdfFont

Method	Description
`PdfFont.helvetica()`	Helvetica (standard)
`PdfFont.helveticaBold()`	Helvetica Bold
`PdfFont.timesRoman()`	Times Roman
`PdfFont.courier()`	Courier
`PdfFont.createFromTtf(stream)`	Load TTF font
`PdfFont.createFromOtf(stream)`	Load OTF font
`registerOn(page)`	Register on page, returns name
`getTextWidth(text, size)`	Measure text width in points

com.droidpdf.layout

Document

Method	Description
`Document(pdfDoc, pageSize?)`	Create layout document
`add(element)`	Add a layout element
`setMargins(top, right, bottom, left)`	Set page margins
`close()`	Finalize and close

Paragraph / Table / Image

See the Text, Images & Tables documentation for usage details.

com.droidpdf.manipulation

PdfMerger

val merger = PdfMerger(outputStream)
merger.merge(inputStream1)          // all pages
merger.merge(inputStream2, 2, 5)    // pages 2-5
merger.close()

PdfSplitter

val splitter = PdfSplitter(inputStream)
splitter.extractPages(1, 3, outputStream)     // pages 1-3
splitter.extractPages(listOf(1,3,5), output)  // specific pages
splitter.splitByPage { page -> getOutputStream(page) }

com.droidpdf.annotations

Class	Type
`PdfTextAnnotation`	Sticky note
`PdfHighlightAnnotation`	Text highlight
`PdfUnderlineAnnotation`	Text underline
`PdfStrikeoutAnnotation`	Strikethrough
`PdfFreeTextAnnotation`	Text box
`PdfStampAnnotation`	Stamp (Approved, Draft, etc.)
`PdfSquareAnnotation`	Rectangle
`PdfCircleAnnotation`	Circle / Ellipse
`PdfLineAnnotation`	Line
`PdfInkAnnotation`	Freehand drawing
`PdfLinkAnnotation`	Hyperlink

com.droidpdf.forms

Class	Type
`TextField`	Text input
`CheckboxField`	Checkbox
`RadioButtonField`	Radio button group
`DropdownField`	Dropdown / Combo box
`PdfAcroForm`	Form field manager

com.droidpdf.security

PdfEncryption.Builder

val encryption = PdfEncryption.Builder()
    .setUserPassword("user123")
    .setOwnerPassword("admin456")
    .setKeyLength(256)         // 128 or 256
    .allowPrinting(true)
    .allowCopying(false)
    .build()