Application: print a poster
To print a photo on several pages, you can divide the image into rectangles to form a table of sub-images.
Free online service
To change the format of a PDF
To change the format or aspect ratio of a PDF, for example to transform a US letter into an A4, you can start by converting the PDF into an image. For occasional use, there are online “pdf to jpg” applications. For more intensive use, download and install an application such as GIMP (free).
Then fill in the form on this page to convert the resulting image into a new PDF.
In your printing software, select the paper size, “automatic” orientation and “Actual size” dimension.
Cutting
Each partial image is surrounded by a 1/125 inch (= 0.2 mm) white border, then a 1/125 inch (= 0.2 mm) black border. To cut out the photo, use a cutter, a cutting board and a ruler: follow the white line between the partial photo and the black frame.
Variants
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Convert an image into a multipage PDF to obtain a given width or height :
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Convert an image containing a scale indicator into a multipage PDF to obtain actual dimensions :