Zotero Plugins Atlas
Plugins / Reading & PDFs

Set PDF View (fork)

by ppavlidis · github.com/ppavlidis/zotero-pdf-setHorizontal

A Zotero plugin that allows you to set defaults for PDF viewing such as scroll and zoom mode. Forked from qiwei-ma/zotero-pdf-setHorizontal.

Reading & PDFsInterface & look
View source
Downloads a .xpi file (0.05 MB). In Zotero, open Tools → Plugins and install it from the file.
StarsPeople who starred the repository on GitHub: a rough measure of interest.
2
DownloadsAll-time downloads of its release files from GitHub. Installs from elsewhere aren't counted.
10
ContributorsPeople who have committed code to the repository.
3
LicenceThe licence the code is published under, as GitHub reports it.
AGPL-3.0
B
Atlas gradeUse with care
because a zotero:// link (a web page can open one) can make it install add-ons without asking you (from zotero-plugin-toolkit), and 1 more finding
Applies to v1.1.0, released 10 Sep 2026Code checked · not yet tested in a live Zotero
Fork of qiwei-ma/zotero-pdf-setHorizontalA copy of another listed plugin, changed by someone else.
Another plugin uses the same IDOne other plugin shares this add-on ID. Zotero can only install one of them.
What we found in the codeSets the gradeThe worst finding in these three areas sets the grade.
Code transparencyReadable code; not yet checked against the published sourceThe developer uploaded the release file from the ppavlidis account. We haven't yet checked whether this file matches the public source code.UnknownWe couldn't check this yet.
Updates
Updates come from this project's GitHub repositoryThe update address offers this version
Where your data goesNo web requests foundLowLow concern: normal for plugins that do this job. Listed so you know.
No further detail for this area yet.
Powerful capabilitiesA zotero:// link (a web page can open one) can make it install add-ons without asking you, and 2 moreMediumMedium concern: worth reading before you install. One medium finding makes the grade B.
A zotero:// link (a web page can open one) can make it install add-ons without asking you (from zotero-plugin-toolkit)mediumMedium concern: worth reading before you install.A zotero:// link can make it run code if you approve a prompt (from zotero-plugin-toolkit)mediumMedium concern: worth reading before you install.Works with files on your computerlowLow concern.
Where we found it
A zotero:// link (a web page can open one) can make it install add-o…content/scripts/pdfsethorizontalscroll.js · line 154

zotero://plugin

Services.io.getProtocolHandler("zotero").wrappedJSObject._extensions["zotero://plugin"] = pluginBridgeExtension;
A zotero:// link can make it run code if you approve a promptcontent/scripts/pdfsethorizontalscroll.js · line 100

zotero://ztoolkit-debug

Services.io.getProtocolHandler("zotero").wrappedJSObject._extensions["zotero://ztoolkit-debug"] = debugBridgeExtension;
Before you installShown, not gradedFacts to help you decide. They don't change the grade.
Works withZotero 7, 8, 9, 10 · not 11 betaUpdates automatically
Zotero 7 ✓ worksZotero 8 ✓ worksZotero 9 ✓ worksZotero 10 ✓ worksZotero 11 beta ✗ doesn't work
What you'll needNothing extra detectedDetected automatically from its code
No further detail for this area yet.
MaintenanceActive · last release 10 Sep 20263 contributors
No further detail for this area yet.
LanguagesDocumentation in EnglishInterface: English and Chinese
No further detail for this area yet.
We report what we found in the code. Open any area for the evidence.How we gradeReport a problem

What it does

Description coming soon. We haven't written a summary yet. The line above is the developer's own description; the developer's README is linked above.

What you'll need

Detected automatically

We haven't detected any setup requirements. That isn't the same as none: check the developer's README.

Where your data goes

We found: no web requests found.

Forks and alternatives

Fork of qiwei-ma/zotero-pdf-setHorizontal.

1 other plugin uses the same ID as this one. Every Zotero plugin carries an ID, a name tag Zotero uses to tell plugins apart. These 2 plugins carry the same one, because people copied Set HorizontalScroll to make their own versions and kept its ID.Show what this means
  • You can only have one. Zotero sees them as the same plugin.
  • Installing another replaces it. If you install one of the others, it takes this one's place.
  • Check what you install. Several share this plugin's name, so make sure the file comes from the one you meant.
Set PDF View (fork) · this pluginppavlidis/zotero-pdf-setHorizontalBUse with care1010 Sep 2026
Set HorizontalScrollThe most used · qiwei-ma/zotero-pdf-setHorizontalBUse with care6,45421 May 2026
See all 2 and how they differ →

No forks listed.

Plugins for the same job
  • NoteroReading & PDFs · Files, sync & backupA+Recommended, tested in Zotero
  • Bionic for ZoteroReading & PDFsA+Recommended, tested in Zotero
  • ZotLitReading & PDFs · Citing & writingA+Recommended, tested in Zotero
  • Zotero Focused ModeReading & PDFsA+Recommended, tested in Zotero

The developer's response

The developer hasn't responded. Developers can reply here, and their reply sits next to our findings.I'm the developer
Install Set PDF View (fork)
BUse with care
Before you install: A zotero:// link (a web page can open one) can make it install add-ons without asking you (from zotero-plugin-toolkit), and 1 more finding.Read the finding
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