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Move PDF thumbnail generation to ImageMagick

Browse source 
Closes SCI-3579
This commit is contained in:
Jure Grabnar 2019-06-21 19:42:58 +02:00
parent 290e452aec
commit 33cc3c29d1
1 changed files with 19 additions and 9 deletions
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28
lib/paperclip_processors/custom_file_preview.rb
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@ -10,16 +10,26 @@ module Paperclip
dst = TempfileFactory.new.generate("#{basename}.#{options[:format]}")
begin
Paperclip.run(
libreoffice_path,
"--headless --invisible --convert-to png --outdir #{directory} #{@file.path}"
)
if @file.content_type == 'application/pdf'
# We use special convert options for PDFs to improve quality and
# background, we append [0] to convert only the first page
convert(
":source -resize '#{options[:geometry]}' -format #{options[:format]} -flatten -quality 70 :dest",
source: File.expand_path(@file.path) + '[0]',
dest: File.expand_path(dst.path)
)
else
Paperclip.run(
libreoffice_path,
"--headless --invisible --convert-to png --outdir #{directory} #{@file.path}"
)
convert(
":source -resize '#{options[:geometry]}' -format #{options[:format]} #{options[:convert_options]} :dest",
source: File.expand_path(original_preview_file),
dest: File.expand_path(dst.path)
)
convert(
":source -resize '#{options[:geometry]}' -format #{options[:format]} #{options[:convert_options]} :dest",
source: File.expand_path(original_preview_file),
dest: File.expand_path(dst.path)
)
end
ensure
File.delete(original_preview_file) if File.file?(original_preview_file)
end