Struct StreamingPdfRenderer 

pub struct StreamingPdfRenderer { /* private fields */ }

Streaming PDF renderer that builds documents incrementally

Unlike the standard PdfRenderer which requires the full area tree, this renderer accepts pages one at a time and can generate PDF output incrementally to minimize memory usage.

Implementations

impl StreamingPdfRenderer

pub fn new() -> Self

Create a new streaming PDF renderer

pub fn add_page(&mut self, area_tree: &AreaTree) -> Result<()>

Add a single page from an area tree to the PDF

This method processes one page at a time. After this call returns, the area_tree can be dropped to free memory.

Arguments

• area_tree - Area tree containing exactly one page

Returns

Returns Ok(()) if the page was successfully added, or an error otherwise.

pub fn write_to<W: Write>(self, writer: &mut W) -> Result<()>

Write the PDF to an output stream

This finalizes the PDF document and writes all data to the output stream. After this call, no more pages can be added.

pub fn to_bytes(self) -> Result<Vec<u8>>

Get the bytes of the PDF document

This finalizes the PDF document and returns all bytes. After this call, no more pages can be added.

pub fn page_count(&self) -> usize

Get the number of pages added so far

pub fn set_title(&mut self, title: String)

Set the PDF document title

pub fn set_author(&mut self, author: String)

Set the PDF document author

pub fn set_subject(&mut self, subject: String)

Set the PDF document subject

Trait Implementations

impl Default for StreamingPdfRenderer

fn default() -> Self

Returns the “default value” for a type.