From d9c00eb5ca577018b40533f041230754484ace7e Mon Sep 17 00:00:00 2001
From: John Cupitt <jcupitt@gmail.com>
Date: Fri, 28 Jan 2022 13:32:13 +0000
Subject: [PATCH] add password fielf to pdfiumload

and docs
---
 libvips/foreign/foreign.c     |  3 +++
 libvips/foreign/pdfiumload.c  | 15 ++++++++++++++-
 libvips/foreign/popplerload.c |  2 ++
 3 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/libvips/foreign/foreign.c b/libvips/foreign/foreign.c
index 9bf932a6..c5d4a488 100644
--- a/libvips/foreign/foreign.c
+++ b/libvips/foreign/foreign.c
@@ -2583,6 +2583,7 @@ vips_jxlsave_target( VipsImage *in, VipsTarget *target, ... )
  * * @dpi: %gdouble, render at this DPI
  * * @scale: %gdouble, scale render by this factor
  * * @background: #VipsArrayDouble background colour
+ * * @password: %gchararray background colour
  *
  * Render a PDF file into a VIPS image. 
  *
@@ -2603,6 +2604,8 @@ vips_jxlsave_target( VipsImage *in, VipsTarget *target, ... )
  * Use @background to set the background RGBA colour. The default is 255 
  * (solid white), use eg. 0 for a transparent background.
  *
+ * Use @password to supply a decryption password.
+ *
  * The operation fills a number of header fields with metadata, for example
  * "pdf-author". They may be useful. 
  *
diff --git a/libvips/foreign/pdfiumload.c b/libvips/foreign/pdfiumload.c
index 4b0c3c93..d8d0cf1e 100644
--- a/libvips/foreign/pdfiumload.c
+++ b/libvips/foreign/pdfiumload.c
@@ -12,6 +12,8 @@
  * 	- have a lock just for pdfium [DarthSim]
  * 	- update for current pdfium
  * 	- add _source input
+ * 28/1/22
+ * 	- add password
  */
 
 /*
@@ -130,6 +132,10 @@ typedef struct _VipsForeignLoadPdf {
 	 */
 	VipsArrayDouble *background;
 
+	/* Decrypt with this.
+	 */
+	const char *password;
+
 	FPDF_FILEACCESS file_access;
 	FPDF_DOCUMENT doc;
 	FPDF_PAGE page;
@@ -281,7 +287,7 @@ vips_foreign_load_pdf_build( VipsObject *object )
 		g_mutex_lock( vips_pdfium_mutex );
 
 		if( !(pdf->doc = FPDF_LoadCustomDocument( &pdf->file_access, 
-			NULL )) ) {
+			pdf->password )) ) {
 			g_mutex_unlock( vips_pdfium_mutex );
 			vips_pdfium_error();
 			vips_error( "pdfload", 
@@ -693,6 +699,13 @@ vips_foreign_load_pdf_class_init( VipsForeignLoadPdfClass *class )
 		G_STRUCT_OFFSET( VipsForeignLoadPdf, background ),
 		VIPS_TYPE_ARRAY_DOUBLE );
 
+	VIPS_ARG_STRING( class, "password", 25, 
+		_( "Password" ), 
+		_( "Decrypt with this password" ),
+		VIPS_ARGUMENT_OPTIONAL_INPUT,
+		G_STRUCT_OFFSET( VipsForeignLoadPdf, password ),
+		NULL );
+
 }
 
 static void
diff --git a/libvips/foreign/popplerload.c b/libvips/foreign/popplerload.c
index 069cc75c..2028221c 100644
--- a/libvips/foreign/popplerload.c
+++ b/libvips/foreign/popplerload.c
@@ -20,6 +20,8 @@
  * 	- allow dpi and scale to both be set [le0daniel]
  * 21/4/21 kleisauke
  * 	- include GObject part from pdfload.c
+ * 28/1/22
+ * 	- add password
  */
 
 /*