CopyPageRanges very slowly!

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   I want to create multipage pdf with function LoadFromString()...And if I use CopyPageRanges() from document created by 
LoadFromString() to my multipage document it's VERY slowly!Please help!

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AlexCasual Members Profile Find Members Posts Beginner Joined: 10 Feb 12 Location: Belarus,Minsk Status: Offline Points: 13	Post Options Post Reply Quote AlexCasual Report Post Thanks(0) Quote Reply Topic: CopyPageRanges very slowly! Posted: 14 Feb 12 at 8:12AM
	I want to create multipage pdf with function LoadFromString()...And if I use CopyPageRanges() from document created by LoadFromString() to my multipage document it's VERY slowly! Please help!

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3524	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 14 Feb 12 at 9:37AM
	Hi Alex! This could depend on the type of your pdfs (where's a sample?). Perhaps it have to do with your code (where's a sample?). You should deliver more infos if you need help. And don't forget: It's a user-user-forum here - not the official support pages ;-) Cheers, Ingo Edited by Ingo - 14 Feb 12 at 9:37AM

AlexCasual Members Profile Find Members Posts Beginner Joined: 10 Feb 12 Location: Belarus,Minsk Status: Offline Points: 13	Post Options Post Reply Quote AlexCasual Report Post Thanks(0) Quote Reply Posted: 14 Feb 12 at 2:53PM
	Part of C++ code : .......... int pdf_id = m_QP->NewDocument(); for (SIZE_T i = 0; i < this->count_; ++i) { m_QP->SetOrigin(1); std::string pdf_source; this->GetDataPdf(i,pdf_source); // <- Read pdf files from disk load_result = m_QP->LoadFromString(pdf_source,L""); int curr_id = m_QP->SelectedDocument(); m_QP->SelectDocument(pdf_id); m_QP->CopyPageRanges(curr_id,L"1"); // <- VERY SLOWLY!!! m_QP->RemoveDocument(curr_id); } std::string pdf_source; try { m_QP->DeletePages(1,1); pdf_source = m_QP->SaveToString(); m_QP->SaveToFile(L"c:\\Z.pdf"); m_QP->RemoveDocument(pdf_id); } catch(...){}

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3524	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 15 Feb 12 at 7:20PM
	Hi! At other parts you can save time. First you load into string and then the string into QP. At least you save to string and then from string via QP to file. Why? In your case i would remove the load/save to string? If you want to copy pages from one document to the other and want to delete them later in the original document you should better use the capture functions (so one step less ;-). To save further performance you can use the DA-functionalities. Cheers, Ingo Edited by Ingo - 15 Feb 12 at 7:27PM

AlexCasual Members Profile Find Members Posts Beginner Joined: 10 Feb 12 Location: Belarus,Minsk Status: Offline Points: 13	Post Options Post Reply Quote AlexCasual Report Post Thanks(0) Quote Reply Posted: 16 Feb 12 at 6:56PM
	Capture functions will be working better?

AlexCasual Members Profile Find Members Posts Beginner Joined: 10 Feb 12 Location: Belarus,Minsk Status: Offline Points: 13	Post Options Post Reply Quote AlexCasual Report Post Thanks(0) Quote Reply Posted: 16 Feb 12 at 7:06PM
	But I need copy pages from one document to another,can I use capture functions in this case?

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3524	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 16 Feb 12 at 7:50PM
	I've seen copy and then delete - so i thought it was better to capture ;-)

edvoigt Members Profile Find Members Posts Senior Member Joined: 26 Mar 11 Location: Berlin, Germany Status: Offline Points: 111	Post Options Post Reply Quote edvoigt Report Post Thanks(0) Quote Reply Posted: 16 Feb 12 at 9:16PM
	Hi, working with capture is only possible in one document, so you need merge in any form before. As Ingo said, explain please more accurate what you want. I assume you want to build a new PDF and your source is another (bigger) PDF from which you need only a few pages? Remember about the difference between your PDF on disk and the document in QP, which is a construct in memory. First you should use the "normal" way loadfromfile without going a way over a string. This string needs memory, QP->document needs memory. So you help QP to be slow. If you have one PDF from which you need some pages, so the easiest way is to take it and delte the unneeded pages. So you have only one document in memory. After deleting process it is to save and you are ready. If the PDF is very big, it may be better to use DA..., but try first easy QP.Loadfromfile('name.pdf', ''); QP.DeletePage(12, 6); // example: without 12,13,..17 QP.SaveToFile('name_new.pdf'); to get a feeling for the possibilities of QP. More as this kernel operations is not needed. Werner