diff --git a/README.Rmd b/README.Rmd
index d94771b..b2e457d 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -119,6 +119,18 @@ directory before trying to install the package. This can be changed from
 write permission by choosing "Run as administrator" when launching R (again,
 from the right-click context menu).
 
+## Debugging
+
+Load the package like this:
+
+```r
+devtools::load_all()
+libname = "/home/pacha/R/x86_64-pc-linux-gnu-library/4.4"
+pkgname = "tabulapdf"
+rJava::.jpackage(pkgname, jars = "*", lib.loc = libname)
+rJava::J("java.lang.System")$setProperty("java.awt.headless", "true")
+```
+
 ## Meta
 
 * Please [report any issues or bugs](https://github.com/ropensci/tabulapdf/issues).
diff --git a/dev/test-special_characters.R b/dev/test-special_characters.R
new file mode 100644
index 0000000..59cdb34
--- /dev/null
+++ b/dev/test-special_characters.R
@@ -0,0 +1,26 @@
+devtools::load_all()
+libname <- "/home/pacha/R/x86_64-pc-linux-gnu-library/4.4"
+pkgname <- "tabulapdf"
+rJava::.jpackage(pkgname, jars = "*", lib.loc = libname)
+rJava::J("java.lang.System")$setProperty("java.awt.headless", "true")
+
+file <- "inst/examples/xbar.pdf"
+pages <- NULL
+area <- NULL
+password <- NULL
+encoding <- NULL
+copy <- FALSE
+
+pdfDocument <- load_doc(file, password = password, copy = copy)
+on.exit(pdfDocument$close())
+
+stripper <- new(J("org.apache.pdfbox.text.PDFTextStripper"))
+
+if (is.null(stripper)) {
+  stop("Failed to initialize PDFTextStripper.")
+}
+
+stripper$setSortByPosition(TRUE)
+stripper$setAddMoreFormatting(TRUE)
+
+out <- stripper$getText(pdfDocument)
diff --git a/inst/examples/xbar.pdf b/inst/examples/xbar.pdf
new file mode 100644
index 0000000..7c8ff46
Binary files /dev/null and b/inst/examples/xbar.pdf differ