Hi! We cleaned up your code for you!

Classes/PDFContainer.m

@@ -36,29 +36,29 @@ - (void)dealloc {
     CGPDFDocumentRelease(_PDFDocRef);
     [_fileURL release];
     [_password release];
-    
+
     [super dealloc];
 }
 
 - (BOOL)changeFileURL:(NSURL *)fileURL password:(NSString *)password
 {
 	BOOL status = NO;
-    
+
 	if (fileURL != nil) // Check for non-nil file URL
-	{        
+	{
         if (_fileURL)
-            [_fileURL release]; 
-        
+            [_fileURL release];
+
         if (_password)
-            [_password release]; 
-        
+            [_password release];
+
         _fileURL = [fileURL copy]; // Keep a copy
         _password = [password copy]; // Ditto
 
         CGPDFDocumentRelease(_PDFDocRef);
-        
+
 		_PDFDocRef = CGPDFDocumentCreateX((CFURLRef)fileURL, password);
-        
+
 		if (_PDFDocRef != NULL) // Check for non-NULL CGPDFDocRef
 		{
 			pages = CGPDFDocumentGetNumberOfPages(_PDFDocRef); // Set the total page count
@@ -72,7 +72,7 @@ - (BOOL)changeFileURL:(NSURL *)fileURL password:(NSString *)password
 	{
 		NSAssert(NO, @"fileURL == nil");
 	}
-    
+
 	return status;
 }
 
@@ -81,7 +81,7 @@ - (CGPDFPageRef)getPage:(NSInteger)pageNumber {
     if (pageNumber > pages) pageNumber = pages; // Check the upper page bounds
 
     CGPDFPageRef newPDFPageRef = CGPDFDocumentGetPage(_PDFDocRef, pageNumber);
-    
+
     if (newPDFPageRef == NULL) // Check for non-NULL CGPDFPageRef
     {
         NSAssert(NO, @"CGPDFPageRef == NULL");

Classes/PDFViewTiled.m

@@ -44,7 +44,7 @@ + (Class)layerClass
 
 - (id)initWithPage:(NSInteger)onPage frame:(CGRect)frame {
     if (self = [self initWithFrame:frame])
-    {        
+    {
         page = onPage;
         _PDFPageRef = [[PDFContainer sharedPDF] getPage:onPage];
 
@@ -56,11 +56,11 @@ - (id)initWithPage:(NSInteger)onPage frame:(CGRect)frame {
         {
             NSAssert(NO, @"CGPDFPageRef == NULL");
         }
-        
+
     }
-    
+
     self.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
-        
+
     return self;
 }
 
@@ -72,7 +72,7 @@ - (void)willRotate
 }
 
 - (void)didRotate
-{    
+{
 	[self.layer setNeedsDisplay];
 
 	self.layer.hidden = NO;

Classes/ReaderViewController.m

@@ -125,7 +125,7 @@ - (void)viewDidLoad
     [[PDFContainer sharedPDF] changeFileURL:fileURL password:nil];
 
     [self initPDFScroll];
-    
+
 	theToolbar = [UIToolbar new]; // Create the application toolbar
 
 	theToolbar.autoresizingMask = UIViewAutoresizingFlexibleWidth;
@@ -252,7 +252,7 @@ - (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrie
 	NSLog(@"ReaderViewController.m -willRotateToInterfaceOrientation: [%d]", toInterfaceOrientation);
 	NSLog(@" -> self.view.bounds = %@", NSStringFromCGRect(self.view.bounds));
 #endif
-    
+
     [super willRotateToInterfaceOrientation:toInterfaceOrientation duration:duration];
 }
 
@@ -274,7 +274,7 @@ - (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceO
 #endif
 
 	//if (fromInterfaceOrientation == self.interfaceOrientation) return; // You get this when presented modally
-    
+
     [super didRotateFromInterfaceOrientation:fromInterfaceOrientation];
 }
 

PDFScrollView.h

@@ -2,14 +2,14 @@
      File: PDFScrollView.h
  Abstract: Centers image within the scroll view and configures image sizing and display.
   Version: 1.1
- 
+
  Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple
  Inc. ("Apple") in consideration of your agreement to the following
  terms, and your use, installation, modification or redistribution of
  this Apple software constitutes acceptance of these terms.  If you do
  not agree with these terms, please do not use, install, modify or
  redistribute this Apple software.
- 
+
  In consideration of your agreement to abide by the following terms, and
  subject to these terms, Apple grants you a personal, non-exclusive
  license, under Apple's copyrights in this original Apple software (the
@@ -25,13 +25,13 @@
  implied, are granted by Apple herein, including but not limited to any
  patent rights that may be infringed by your derivative works or by other
  works in which the Apple Software may be incorporated.
- 
+
  The Apple Software is provided by Apple on an "AS IS" basis.  APPLE
  MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
  THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
  FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
  OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
- 
+
  IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
  OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
@@ -40,9 +40,9 @@
  AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
  STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
  POSSIBILITY OF SUCH DAMAGE.
- 
+
  Copyright (C) 2010 Apple Inc. All Rights Reserved.
- 
+
  */
 
 #import <UIKit/UIKit.h>

PDFScrollView.m

@@ -2,14 +2,14 @@
      File: PDFScrollView.m
  Abstract: Centers image within the scroll view and configures image sizing and display.
   Version: 1.1
- 
+
  Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple
  Inc. ("Apple") in consideration of your agreement to the following
  terms, and your use, installation, modification or redistribution of
  this Apple software constitutes acceptance of these terms.  If you do
  not agree with these terms, please do not use, install, modify or
  redistribute this Apple software.
- 
+
  In consideration of your agreement to abide by the following terms, and
  subject to these terms, Apple grants you a personal, non-exclusive
  license, under Apple's copyrights in this original Apple software (the
@@ -25,13 +25,13 @@
  implied, are granted by Apple herein, including but not limited to any
  patent rights that may be infringed by your derivative works or by other
  works in which the Apple Software may be incorporated.
- 
+
  The Apple Software is provided by Apple on an "AS IS" basis.  APPLE
  MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
  THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
  FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
  OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
- 
+
  IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
  OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
@@ -40,9 +40,9 @@ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
  STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
  POSSIBILITY OF SUCH DAMAGE.
- 
+
  Copyright (C) 2010 Apple Inc. All Rights Reserved.
- 
+
  */
 
 #import "PDFScrollView.h"
@@ -67,7 +67,7 @@ - (id)initWithFrame:(CGRect)frame
         self.showsHorizontalScrollIndicator = NO;
         self.bouncesZoom = YES;
         self.decelerationRate = UIScrollViewDecelerationRateFast;
-        self.delegate = self;        
+        self.delegate = self;
         [self setMaxMinZoomScalesForCurrentBounds];
         self.contentSize = CGSizeMake(pdfView.bounds.size.width * 5, pdfView.bounds.size.height * 5);
         self.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
@@ -89,29 +89,29 @@ - (void)dealloc
 #pragma mark -
 #pragma mark Override layoutSubviews to center content
 
-- (void)layoutSubviews 
+- (void)layoutSubviews
 {
     [super layoutSubviews];
-    
+
     // center the image as it becomes smaller than the size of the screen
-    
+
     CGSize boundsSize = self.bounds.size;
     CGRect frameToCenter = pdfView.frame;
-    
+
     // center horizontally
     if (frameToCenter.size.width < boundsSize.width)
         frameToCenter.origin.x = (boundsSize.width - frameToCenter.size.width) / 2;
     else
         frameToCenter.origin.x = 0;
-    
+
     // center vertically
     if (frameToCenter.size.height < boundsSize.height)
         frameToCenter.origin.y = (boundsSize.height - frameToCenter.size.height) / 2;
     else
         frameToCenter.origin.y = 0;
-    
+
     pdfView.frame = frameToCenter;
-    
+
 //    if ([pdfView isKindOfClass:[PDFViewTiled class]]) {
 //        // to handle the interaction between CATiledLayer and high resolution screens, we need to manually set the
 //        // tiling view's contentScaleFactor to 1.0. (If we omitted this, it would be 2.0 on high resolution screens,
@@ -147,48 +147,48 @@ - (void)setMaxMinZoomScalesForCurrentBounds
 {
     CGSize boundsSize = self.bounds.size;
     CGSize imageSize = CGSizeMake(pdfView.bounds.size.width * 5, pdfView.bounds.size.height * 5);
-    
+
     // calculate min/max zoomscale
     CGFloat xScale = boundsSize.width / imageSize.width;    // the scale needed to perfectly fit the image width-wise
     CGFloat yScale = boundsSize.height / imageSize.height;  // the scale needed to perfectly fit the image height-wise
     CGFloat minScale = MIN(xScale, yScale);                 // use minimum of these to allow the image to become fully visible
-    
+
     // on high resolution screens we have double the pixel density, so we will be seeing every pixel if we limit the
     // maximum zoom scale to 0.5.
     CGFloat maxScale = 5.0 / [[UIScreen mainScreen] scale];
-    
-    // don't let minScale exceed maxScale. (If the image is smaller than the screen, we don't want to force it to be zoomed.) 
+
+    // don't let minScale exceed maxScale. (If the image is smaller than the screen, we don't want to force it to be zoomed.)
     if (minScale > maxScale) {
         minScale = maxScale;
     }
-    
+
 //    if (minScale < -5)
 //        minScale = -5;
-    
+
     self.maximumZoomScale = 5.0; //maxScale;
     self.minimumZoomScale = 1.0; //minScale;
 }
 
 #pragma mark -
 #pragma mark Methods called during rotation to preserve the zoomScale and the visible portion of the image
 
-// returns the center point, in image coordinate space, to try to restore after rotation. 
+// returns the center point, in image coordinate space, to try to restore after rotation.
 - (CGPoint)pointToCenterAfterRotation
 {
     CGPoint boundsCenter = CGPointMake(CGRectGetMidX(self.bounds), CGRectGetMidY(self.bounds));
     return [self convertPoint:boundsCenter toView:pdfView];
 }
 
-// returns the zoom scale to attempt to restore after rotation. 
+// returns the zoom scale to attempt to restore after rotation.
 - (CGFloat)scaleToRestoreAfterRotation
 {
     CGFloat contentScale = self.zoomScale;
-    
+
     // If we're at the minimum zoom scale, preserve that by returning 0, which will be converted to the minimum
     // allowable scale when the scale is restored.
     if (contentScale <= self.minimumZoomScale + FLT_EPSILON)
         contentScale = 0;
-    
+
     return contentScale;
 }
 
@@ -206,17 +206,17 @@ - (CGPoint)minimumContentOffset
 
 // Adjusts content offset and scale to try to preserve the old zoomscale and center.
 - (void)restoreCenterPoint:(CGPoint)oldCenter scale:(CGFloat)oldScale
-{    
+{
     // Step 1: restore zoom scale, first making sure it is within the allowable range.
     self.zoomScale = MIN(self.maximumZoomScale, MAX(self.minimumZoomScale, oldScale));
-    
-    
+
+
     // Step 2: restore center point, first making sure it is within the allowable range.
-    
+
     // 2a: convert our desired center point back to our own coordinate space
     CGPoint boundsCenter = [self convertPoint:oldCenter fromView:pdfView];
     // 2b: calculate the content offset that would yield that center point
-    CGPoint offset = CGPointMake(boundsCenter.x - self.bounds.size.width / 2.0, 
+    CGPoint offset = CGPointMake(boundsCenter.x - self.bounds.size.width / 2.0,
                                  boundsCenter.y - self.bounds.size.height / 2.0);
     // 2c: restore offset, adjusted to be within the allowable range
     CGPoint maxOffset = [self maximumContentOffset];

PDFViewController.h

@@ -15,7 +15,7 @@
 
     NSMutableSet *recycledPages;
     NSMutableSet *visiblePages;
-    
+
     // these values are stored off before we start rotation so we adjust our content offset appropriately during rotation
     int           firstVisiblePageIndexBeforeRotation;
     CGFloat       percentScrolledIntoFirstVisiblePage;