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@Anonymo

I needed Java 17 plus matching Java UI scaling and PDF Studio rendering scaling. Fractional Java scaling such as 1.5 did not work for me, but 2 did.

sudo pacman -S --needed jre17-openjdk

mkdir -p ~/.local/bin

cat > ~/.local/bin/pdfstudio-qoppa <<'EOF'
#!/usr/bin/env bash
export INSTALL4J_JAVA_HOME=/usr/lib/jvm/java-17-openjdk
export _JAVA_AWT_WM_NONREPARENTING=1
export _JAVA_OPTIONS="${_JAVA_OPTIONS:-} -Dswing.aatext=true -Dawt.useSystemAAFontSettings=on -Dsun.java2d.uiScale=2"
exec /usr/bin/pdfstudio "$@"
EOF

chmod +x ~/.local/bin/pdfstudio-qoppa

Start with:

~/.local/bin/pdfstudio-qoppa

Then in PDF Studio:

File -> Preferences -> Display

Set:

• Rendering -> Display scale: same factor as Java UI scale, e.g. 2 / 200%
• Document Resolution: custom value suitable for your display

Java scaling fixes the tiny UI. Matching PDF Studio's internal display scale fixes blurry document rendering.

What settings are you guys using to make the interface not so small but at the same time, if I mess with java settings/fonts, it makes it blurry.

@Twikzer There's in incompatibility between the latest JDK and the bundled version of Java Native Access. Replacing /usr/share/pdfstudio/lib/dj/jna.jar with the latest https://repo1.maven.org/maven2/net/java/dev/jna/jna/5.17.0/jna-5.17.0.jar fixes this.

It seems that Qoppa PDF Studio development now takes place as Xodo PDF Studio. Would it be better to make a separate package for that, as they have different names?

it crash when i try to open a dialog to select a file

it has been almost a month and no updates

Update: If you want to run it with the latest JRE, comment out these lines in /usr/bin/pdfstudio:

  # if [ "$ver_major" -gt "19" ]; then
  #   return;
  # fi

Watch the changed 19 instead of 17 in a comment below

Building pdfstudio-bin... ==> Making package: pdfstudio-bin 2022.2.3-1 (Thu 27 Apr 2023 09:08:58 BST) ==> Checking runtime dependencies... ==> Checking buildtime dependencies... ==> Retrieving sources... -> Found pdfstudio.desktop -> Found pdfstudio.png -> Downloading PDFStudio_v2022_2_3_linux64.deb... % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed

0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 0 330 0 0 0 0 0 0 --:--:-- 0:00:01 --:--:-- 0 curl: (22) The requested URL returned error: 404 ==> ERROR: Failure while downloading https://download.qoppa.com/pdfstudio/v2022/PDFStudio_v2022_2_3_linux64.deb Aborting... Failed to build pdfstudio-bin

OK, now it works .. thanks very much

@mamauriz If you want to run it with the latest JRE, comment out these lines in /usr/bin/pdfstudio:

  # if [ "$ver_major" -gt "17" ]; then
  #   return;
  # fi