optimize image

1 year ago · 5dd59f4f7c
parent 571f5d8221
commit 5dd59f4f7c
1 changed files with 2 additions and 2 deletions
--- a/lib/templates/process_document.rb
+++ b/lib/templates/process_document.rb
@ -44,7 +44,7 @@ module Templates
      bitdepth = 2**image.stats.to_a[1..3].pluck(2).uniq.size

      io = StringIO.new(image.write_to_buffer(FORMAT, compression: 7, filter: 0, bitdepth:,
-                                                      palette: true, Q: Q, dither: 0))
+                                                      palette: true, Q: bitdepth == 8 ? Q : 5, dither: 0))

      ActiveStorage::Attachment.create!(
        blob: ActiveStorage::Blob.create_and_upload!(
@ -100,7 +100,7 @@ module Templates
      bitdepth = 2**page.stats.to_a[1..3].pluck(2).uniq.size

      io = StringIO.new(page.write_to_buffer(FORMAT, compression: 7, filter: 0, bitdepth:,
-                                                     palette: true, Q: Q, dither: 0))
+                                                     palette: true, Q: bitdepth == 8 ? Q : 5, dither: 0))

      blob = ActiveStorage::Blob.new(
        filename: "#{page_number}#{FORMAT}",