Come utilizzare le Utility di Rendering comuni in Python
Come utilizzare le Utility di Rendering comuni in Python
Come utilizzare le utility di rendering comuni in Python
RenderModelBuilder, PdfWriter e RasterRenderer sono i componenti di rendering a basso livello condivisi in tutte le pipeline di conversione FOSS Aspose.Page. Usa RenderModelBuilder per costruire un RenderDocument programmaticamente, poi passalo a PdfWriter o RasterRenderer per produrre byte PDF o un RasterSurface rispettivamente.
Costruisci un RenderDocument
from aspose.page.render.model import RenderModelBuilder
builder = RenderModelBuilder()
builder.begin_page(595, 842)
builder.end_page()
doc = builder.document()Scrivi in PDF
from pathlib import Path
from aspose.page.render.model import RenderModelBuilder
from aspose.page.pdf.writer import PdfWriter
from aspose.page.pdf.metadata import PdfMetadata
builder = RenderModelBuilder()
builder.begin_page(595, 842)
builder.end_page()
doc = builder.document()
metadata = PdfMetadata(
title="Doc",
creator="App",
producer="Aspose.Page FOSS for Python",
creation_date="D:20260609000000",
mod_date="D:20260609000000",
trapped=False,
)
Path("output.pdf").write_bytes(PdfWriter(metadata).write(doc))Renderizza in RasterSurface
from aspose.page.render.model import RenderModelBuilder
from aspose.page.image.raster_renderer import RasterRenderer
builder = RenderModelBuilder()
builder.begin_page(400, 300)
builder.end_page()
doc = builder.document()
renderer = RasterRenderer()
surface = renderer.render(doc, page_index=0)
print(surface.width, surface.height)