fpdf2 - Transparency (original) (raw)

The alpha opacity of text, shapes and even images can be controlled through stroke_opacity (for lines) & fill_opacity (for all other content types):

`pdf = FPDF() pdf.set_font("Helvetica", style="B", size=24) pdf.set_line_width(1.5) pdf.add_page()

Draw an opaque red square:

pdf.set_fill_color(255, 0, 0) pdf.rect(10, 10, 40, 40, "DF")

Set alpha to semi-transparency for shape lines & filled areas:

with pdf.local_context(fill_opacity=0.5, stroke_opacity=0.5): # Draw a green square: pdf.set_fill_color(0, 255, 0) pdf.rect(20, 20, 40, 40, "DF")

Set transparency for images & text:

with pdf.local_context(fill_opacity=0.25): # Insert an image: pdf.image(HERE / "../docs/fpdf2-logo.png", 30, 30, 40) # Print some text: pdf.text(22, 29, "You are...")

Print some text with full opacity:

pdf.text(30, 45, "Over the top")

Produce the resulting PDF:

pdf.output("transparency.pdf") `

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