Add an Image on PDF - RadaeePDF.com

Add an Image on PDF 6 years 11 months ago #12370

Pja Topic Author Offline Senior Member Posts: 45 Thank you received: 0	Hi, How do I add an Image on a page of document?
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Add an Image on PDF 6 years 11 months ago #12371

emanuele Offline User is blocked Posts: 580 Thank you received: 67	Hi, you can take a look at this Knowledge Base article: www.radaeepdf.com/support/knowledge-base...component&kbartid=28
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Add an Image on PDF 6 years 11 months ago #12382

Pja Topic Author Offline Senior Member Posts: 45 Thank you received: 0	I tried using the given method, but this doesn't add the image on the document. This adds the note image on the document.. But i need the image to be added directly on the document. Is there any solution for this?
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Add an Image on PDF 6 years 11 months ago #12383

emanuele
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Posts: 580
Thank you received: 67

Hi,

here is a quick sample of how to add an image as resource and draw it on a page:

    // Get page
    PDFPage *page = [m_doc page:0];
    
    // Create page content
    PDFPageContent *content = [[PDFPageContent alloc] init];
    
    // Get the image to add
    UIImage *img = [UIImage imageNamed:@"image"];
    
    // Create a Doc Image instance
    PDFDocImage *image = [m_doc newImage:img.CGImage :YES];
    
    // Add the image as page resource
    PDF_PAGE_IMAGE rimg = [page addResImage:image];
    [content gsSave];
    
    // Set the matrix (image position/size on page)
    PDFMatrix *matrix = [[PDFMatrix alloc] init:20 :20 :0 :0];
    [content gsCatMatrix:matrix];
    matrix = nil;
    
    // Draw the image on page content
    [content drawImage:rimg];
    [content gsRestore];
    
    // Add the content on the page
    [page addContent:content :false];
    
    // Save the file
    [m_doc save];

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Add an Image on PDF 6 years 11 months ago #12385

Pja
Topic Author
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Senior Member
Posts: 45
Thank you received: 0

Hi Emanuele,

I am using the given method to add the image
// Create the cache file
NSString *tp = NSTemporaryDirectory();
tp = [tp stringByAppendingPathComponent:@"cache.dat"];
[m_doc setCache:tp];

// Create the PDFPage instance of the current page
PDFPage *page = [m_doc page:m_cur_page];

// Create the CGImageRef of the image
CGImageRef ref = [[UIImage imageWithData:imageData] CGImage];

//NSString *path = @"path_to_image";
//PDFDocImage *i = [m_doc newImageJPEG:path];

// Get PDFDocImage instance from CGImageRef (keeping alpha channel)
PDFDocImage *i = [m_doc newImage:ref :YES];

// Define the image rect
PDF_RECT rect;

rect.left = 100;
rect.right = 157;
rect.top = 100;
rect.bottom = 157;

// Add the image

[page addAnnotBitmap:i :&rect];

// Re-render the current page
[m_view vRenderSync:m_cur_page];
[self refresh];
Here i am getting one problem, only with the rect used in the method the image is plotted at the bottom left corner of the page.
When i change any of the rect value the image is not seen.
Can you please explain me the significance of the Rect or what values should i provide to the rect?
I need to add the image at the point where i have long pressed on the pdf.