Struct StreamingParser 

pub struct StreamingParser { /* private fields */ }

Lazy file parser: reads only the xref chain eagerly, then parses individual objects on demand with windowed file reads (offsets come from the xref table). Objects — including large stream bodies — that are never requested are never loaded into RAM, unlike Parser::parse, which materializes the whole file. Each object is cached after its first read.

Implementations

impl StreamingParser

pub fn open(path: impl AsRef<Path>) -> PdfResult<Self>

Opens path and walks its xref chain. Object content is not read yet.

pub fn with_parser(parser: Parser, path: impl AsRef<Path>) -> PdfResult<Self>

Opens with a configured Parser, e.g. carrying custom ParserLimits.

pub fn version(&self) -> &str

PDF version from the header, e.g. "1.7".

pub fn catalog(&self) -> Option<ObjectId>

pub fn info(&self) -> Option<ObjectId>

pub fn object_count(&self) -> usize

Number of entries in the xref table (includes free entries).

pub fn file_size(&self) -> u64

Size of the backing file in bytes.

pub fn get_object(&self, id: ObjectId) -> PdfResult<Option<PdfObject>>

Parses object id on demand (cached after first request). Returns Ok(None) for free or unknown entries.

pub fn get_stream_data(&self, id: ObjectId) -> PdfResult<Option<Vec<u8>>>

Returns the decoded body of a stream object, or None if id is not a stream (or missing).