What is the simplest way to add a hyperlink to a canvas element in ReportLab?

Question

I am using ReportLab to make a pdf using Python. I want to add a shape to the canvas, and have that shape act as a hyperlink. What is the simplest way to make the rectangle in the following example link to google.com?

from reportlab.pdfgen import canvas
from reportlab.lib.units import inch

c = canvas.Canvas("hello.pdf")

# move the origin up and to the left, draw square
c.translate(inch,9*inch)
# How do I make this rectangle link to google.com?
c.rect(inch,inch,1*inch,1*inch, fill=1)

c.showPage()
c.save()

Martijn Pieters · Accepted Answer · 2017-10-27T06:55:42.133

13

Call linkURL on the Canvas:

c.linkURL('http://google.com', (inch, inch, 2*inch, 2*inch), relative=1)

The rectangle is the clickable area, so you'd have to match that to the drawn rectangle. The arguments are two coordinates, twice x, y for the bottom-left and top-right corner.

See more examples in this blog post: http://www.hoboes.com/Mimsy/hacks/adding-links-to-pdf/

edited Oct 27 '17 at 06:55

answered May 21 '12 at 16:35

Martijn Pieters

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Most probably @MartjinPieters is not aware of the issue highlighted by two other answers. Please refer to Crebits's answer for the amended approach. – fatih_dur Oct 26 '17 at 22:40
1

@fatih_dur: thanks for the heads-up, I was not aware of the other posts indeed. – Martijn Pieters Oct 27 '17 at 06:58

score 0 · Answer 2 · answered Jul 26 '20 at 14:35

0

To complement the Martijn answer, the linkURL draw a rectangle using the "default" coordinate system, i.e., bottom+up/left+right. Since the default canvas use the top down coord, i suggest you to make a quick fix basing on your canvas height.

answered Jul 26 '20 at 14:35

Pedro Augusto

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What is the simplest way to add a hyperlink to a canvas element in ReportLab?

2 Answers2

Linked