Convert PDF with exactly the same quality

[a.khalil]

Hi Every one

I want to convert multiple pdf to one pdf but when I try

Code: Select all

convert 0001.pdf 0002.pdf -quality 100 test30.pdf

the quality is very bad . I specify that they are copies with handwriting.

Any idea ?

Thanks

[fmw42]

ImageMagick is not a very good tool for vector to vector processing. It will rasterize your PDF and then embed that into a pdf vector shell. -quality is not useful for pdf processing. You probably want to change the density and resize.

Code: Select all

convert -density 288 0001.pdf 0002.pdf test30.pdf

or

Code: Select all

convert -density 288 0001.pdf 0002.pdf -resize 25% test30.pdf

This assume you start with vector pdf files with nominal 72 dpi. So 4*72=288 and 1/4=25%

The larger the density the larger better the quality, but the bigger the filesize will be.

[snibgo]

A more suitable tool for that task is pdfunite, which is available for *nix, Windows (eg from Cygwin), and probably many other platforms.