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diff --git a/custom/jao-custom-pdf.el b/custom/jao-custom-pdf.el
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+;; -*- lexical-binding: t -*-
+
+;;;; open pdfs
+(use-package saveplace-pdf-view
+  :ensure t
+  :demand t
+  :after doc-view)
+
+(use-package jao-pdf
+  :demand t
+  :config
+  (setq jao-open-doc-fun 'jao-find-or-open)
+  (setq jao-org-open-pdf-fun jao-open-doc-fun))
+
+;;;; doc-view
+(use-package doc-view
+  :init
+  (setq doc-view-cache-directory "~/.emacs.d/cache/docview"
+        doc-view-resolution 110
+        doc-view-continuous t
+        doc-view-conversion-refresh-interval 1
+        doc-view-mupdf-use-svg t)
+  (defalias 'jao-doc-view-externally
+    (jao-d-l 'jao-mac-open-in-skim 'jao-open-with-zathura))
+  :hook ((doc-view-mode . jao-doc-session-mark))
+  :bind (:map doc-view-mode-map
+              ("j" . doc-view-next-line-or-next-page)
+              ("J" . doc-view-search-next-match)
+              ("k" . doc-view-previous-line-or-previous-page)
+              ("K" . doc-view-search-previous-match)
+              ("z" . jao-doc-view-externally)))
+
+(use-package jao-doc-session :demand t)
+
+(use-package jao-doc-view
+  :demand t
+  :bind (:map doc-view-mode-map
+              ("b" . jao-doc-view-back)
+              ("B" . jao-doc-view-forward)
+              ("S" . jao-doc-session-save)
+              ("u" . jao-doc-view-visit-url)))
+
+;;;; transient
+(defun jao-org-pdf-goto-org-linking ()
+  (interactive)
+  (jao-org-pdf-goto-org 4))
+
+(jao-transient-major-mode doc-view
+  ["Notes"
+   ("o" "notes file" jao-org-pdf-goto-org)
+   ("O" "notes file, linking" jao-org-pdf-goto-org-linking)]
+  ["Navigation"
+   ("b" "back jump" jao-doc-view-back)
+   ("B" "forward jump" jao-doc-view-back)
+   ("u" "visit URL" jao-doc-view-visit-url)]
+  ["Slices"
+   ("cb" "bounding box" doc-view-set-slice-from-bounding-box)
+   ("cm" "using mouse" doc-view-set-slice-using-mouse)]
+  ["Session"
+   ("s" "load session" jao-afio-open-pdf-session)
+   ("S" "save session" jao-doc-session-save)
+   ("d" "visit cache directory" doc-view-dired-cache)]
+  ["External viewers"
+   ("z" "open with zathura" jao-open-with-zathura :if jao-is-linux)
+   ("z" "open with skim" jao-mac-open-in-skim :if jao-is-darwin)])
+
+(with-eval-after-load "pdf-view"
+  (jao-transient-major-mode pdf-view
+    ["Notes"
+     ("o" "notes file" jao-org-pdf-goto-org)
+     ("O" "notes file, linking" jao-org-pdf-goto-org-linking)]
+    ["Navigation"
+     ("b" "back jump" pdf-history-backward)
+     ("f" "forward jump" pdf-history-forward)]
+    ["Session"
+     ("s" "load session" jao-afio-open-pdf-session)
+     ("S" "save session" jao-doc-session-save)]
+    ["External viewers"
+     ("z" "open with zathura" jao-open-with-zathura)]))
+
+;; (transient-get-suffix 'jao-transient-pdf-view '(0 -1))
+
+(provide 'jao-custom-pdf)