GetPage fails with error : 'Cannot convert array to rectangle'

[jdenieul]

Hello,

When i try to open a PDF file and read it, i have an error :

UglyToad.PdfPig.Exceptions.PdfDocumentFormatException : 'Cannot convert array to rectangle, expected 4 values instead got: [ 0, 0 ].'

UglyToad.PdfPig.Exceptions.PdfDocumentFormatException
HResult=0x80131500
Message=Cannot convert array to rectangle, expected 4 values instead got: [ 0, 0 ].
Source=UglyToad.PdfPig
Arborescence des appels de procédure :
à UglyToad.PdfPig.Util.ArrayTokenExtensions.ToIntRectangle(ArrayToken array)
à UglyToad.PdfPig.Parser.PageFactory.GetMediaBox(Int32 number, DictionaryToken dictionary, PageTreeMembers pageTreeMembers, Boolean isLenientParsing)
à UglyToad.PdfPig.Parser.PageFactory.Create(Int32 number, DictionaryToken dictionary, PageTreeMembers pageTreeMembers, Boolean isLenientParsing)
à UglyToad.PdfPig.Content.Pages.GetPage(Int32 pageNumber)
à UglyToad.PdfPig.PdfDocument.GetPage(Int32 pageNumber)
à WindowsFormsApp2.Form1.button1_Click(Object sender, EventArgs e) dans C:\Users\source\repos\WindowsFormsApp2\WindowsFormsApp2\Form1.cs :ligne 40
à System.Windows.Forms.Control.OnClick(EventArgs e)
à System.Windows.Forms.Button.OnClick(EventArgs e)
à System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
à System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
à System.Windows.Forms.Control.WndProc(Message& m)
à System.Windows.Forms.ButtonBase.WndProc(Message& m)
à System.Windows.Forms.Button.WndProc(Message& m)
à System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
à System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
à System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
à System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
à System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
à System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
à System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
à System.Windows.Forms.Application.Run(Form mainForm)
à WindowsFormsApp2.Program.Main() dans C:\Users\source\repos\WindowsFormsApp2\WindowsFormsApp2\Program.cs :ligne 19

Hope it will help you to fix it,

[EliotJones]

Thanks, I will try to take a look into this tonight, I was fairly sure the MediaBox for a page should have 4 numbers but I'll check the spec and the PDFBox code and see what they're doing. Would you be able to send me the document so I can check the parsing logic or is it confidential?

[EliotJones]

I've attached a version which works around this problem however I think the problem is deeper in the code which parses the PDF objects.

If you can send me the document or alternatively open the document in a text editor such as notepad++ or Visual Studio and find the part of it which will look something like (using the /MediaBox text):

<< /Contents 57 0 R /MediaBox [ 0 0 612 792 ] /Parent 72 0 R /Resources 65 0 R /Type /Page >>

And send that part to me it would be a huge help to make sure the library works for other cases, thanks, Eliot.
PdfPig.0.0.5.1.zip

[jdenieul]

I can send you this :

<< /Type /Page /Parent 4 0 R /MediaBox [ 0 0 595.28 841.89 ] /Resources <<

It ok for you or you need more ?

[EliotJones]

Thank you, I've run that through the parser and it seems to come through ok, are there other instances of the /MediaBox token in this document (generally there will be 1 per page in the document)?

If you can't share it publicly you could email it to me at elioty(at)hotmail.co.uk

[jdenieul]

No problem, i have one /MediaBox per page.

[EliotJones]

Did the last release fix the problem for you or is it still present?

[jdenieul]

I try that tomorrow, Regards Le jeu. 24 janv. 2019 à 18:50, Eliot Jones <notifications@github.com> a écrit :

…

Did the last release fix the problem for you or is it still present? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#29 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AGy56C8bfG0GBOTxd4mE-6a1Fgju77lUks5vGfJcgaJpZM4aJpKB> .

[jdenieul]

Hi,

I have now a new problem :

Une exception a été levée par l'initialiseur de type pour 'UglyToad.PdfPig.Fonts.SystemFonts.SystemFontFinder'.

à UglyToad.PdfPig.Fonts.SystemFonts.SystemFontFinder..ctor(TrueTypeFontParser trueTypeFontParser)
à UglyToad.PdfPig.Parser.PdfDocumentFactory.OpenDocument(IInputBytes inputBytes, ISeekableTokenScanner scanner, IContainer container, Boolean isLenientParsing) dans C:\git\UglyToad.PdfPig\src\UglyToad.PdfPig\Parser\PdfDocumentFactory.cs:ligne 110
à UglyToad.PdfPig.Parser.PdfDocumentFactory.Open(IInputBytes inputBytes, ParsingOptions options) dans C:\git\UglyToad.PdfPig\src\UglyToad.PdfPig\Parser\PdfDocumentFactory.cs:ligne 63
à UglyToad.PdfPig.Parser.PdfDocumentFactory.Open(String filename, ParsingOptions options) dans C:\git\UglyToad.PdfPig\src\UglyToad.PdfPig\Parser\PdfDocumentFactory.cs:ligne 40
à UglyToad.PdfPig.PdfDocument.Open(String filePath, ParsingOptions options) dans C:\git\UglyToad.PdfPig\src\UglyToad.PdfPig\PdfDocument.cs:ligne 99
à WindowsFormsApplication1.Form1.button1_Click(Object sender, EventArgs e) dans Y:\Developpement\WindowsFormsApplication1\WindowsFormsApplication1\Form1.cs:ligne 24
à System.Windows.Forms.Control.OnClick(EventArgs e)
à System.Windows.Forms.Button.OnClick(EventArgs e)

[EliotJones]

Sorry for the delay on getting back to you. There's just not enough information in this error message to guess at a fix to be honest. It looks like the InnerException might contain a more valuable exception.

PdfPig.0.0.5.2.zip

I've attached an updated package with a change that wraps the static initializer (which I think is throwing) in a try-catch but it's not going to fix whatever the problem is here...

[EliotJones]

Sorry I wasn't able to be more help here but without the original document it's very difficult to fix.