Update cheatsheets

pdftocairo

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pdftocairo
+
+> Converts PDF files to PNG/JPEG/TIFF/PDF/PS/EPS/SVG using cairo.
+> More information: <https://poppler.freedesktop.org>.
+
+- Convert a PDF file to JPEG:
+
+`pdftocairo {{path/to/file.pdf}} -jpeg`
+
+- Convert to PDF expanding the output to fill the paper:
+
+`pdftocairo {{path/to/file.pdf}} {{output.pdf}} -pdf -expand`
+
+- Convert to SVG specifying the first/last page to convert:
+
+`pdftocairo {{path/to/file.pdf}} {{output.svg}} -svg -f {{first_page}} -l {{last_page}}`
+
+- Convert to PNG with 200ppi resolution:
+
+`pdftocairo {{path/to/file.pdf}} {{output.png}} -png -r 200`
+
+- Convert to grayscale TIFF setting paper size to A3:
+
+`pdftocairo {{path/to/file.pdf}} -tiff -gray -paper A3`
+
+- Convert to PNG cropping x and y pixels from the top-left corner:
+
+`pdftocairo {{path/to/file.pdf}} -png -x {{x_pixels}} -y {{y_pixels}}`