CGPDF is an iOS and Mac OS X API for reading and writing PDF documents. CG at the start is an abbreviation of “Core Graphics”.
Questions tagged [cgpdf]
60 questions
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vote
1 answer
CGPDFScannerScan doesn't fire callback functions
I parse pdf files using Quartz.
Everything works fine except for one file. Callback functions are not call at all.
My operator table has been created, I added operators into it with CGPDFOperatorTableSetCallback. Everything seem ok, just callbacks…
bob
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1
vote
1 answer
CGPDF - Saving images with FlateDecode Filter
I'm writing a PDF parser for work, and we're using Core Graphics to read in all of the data with callbacks and then writing it out with Lib Haru because our client needs to write out "real" annotations and CG can't do it.
Well, I've gotten to the…
patt4179
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1
vote
2 answers
EDIT CGPDFObject of the pdf
i try long time to parse a pdf file with quartz cgpdf api, but my question is true that CGPDF API can't edit the object saved in the pdf?
it mean the api used just only for reading file?
franck
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- 4
0
votes
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open pdf in to another pdfviewer application from my application
I have one pdf in my application and I want to open that pdf but not in my applicaton.
When ever i'll click or open that pdf it will ask me to open that pdf in another application of pdf viewer availbale on my device i wnt to know that is it…
Aakil Ladhani
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0
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How to find the pdf document font using CGPDFScanner in iphone app?
I am getting the "F1.0" in Tf callback method in CGPDFScanner.
But I am not getting how I can go ahead with "F1.0"
After doing some search I come to know that it is king of font detail.
How Can I Decode this value.
uttam
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0
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1 answer
How to change the background color of CGPDFPageRef, and how to remove the page's shadow
I'm trying to draw content in a UIWebView instead of a UIView, because I like UIWebView's ability to zoom in and out by pinching. Here's my code:
// setup environment
CGRect outputRect = myWebView.bounds;
CFMutableDataRef data =…
DTs
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Loading PDF in iPad
I am using CGContextDrawPDFPage class to render PDF in my app without any trouble. But, the amount of time taken to load the book is a bit more and the time taken to render the page is proportional to the number of pages in the PDF.
In my case,…
A for Alpha
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0
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CGPDFArray popped but zero count
I'm running the following:
if (CGPDFDictionaryGetObject(dict, "DescendantFonts", &object))
{
CGPDFObjectType objectType = CGPDFObjectGetType(object);
switch (objectType)
{
case kCGPDFObjectTypeArray:
{
CGPDFArrayRef…
Ken
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votes
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CGPDFScanner, Identity-H and decompression
My instance of CGPDFScanner is scanning a test pdf file.
At a given time, the current font dictionary has Encoding value Identity-H and a FontDescriptor dictionary with key FontFile2. This key happens to be for a stream value, whose dictionary has…
Ken
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Extracting font data with CGPDFScanner
I'm using CGPDFScannerto scan PDF. When the scanner encounters something like:
BT
/F13 12 Tf 288 720 Td (ABC) Tj
ET
I use operator callbacks to extract the Tf, Td and Tj data. How do I extract /F13?
Ken
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1 answer
Can CGPDFDataFormatJPEG2000 be used for something other than a JPEG2000 image?
Using the Quartz 2D PDF routines, can the CGPDFDataFormat format of a CGPDFStreamRef PDF stream be equal to CGPDFDataFormatJPEG2000 in any case other than for an XObject image with a filter of /JPXDecode?
In other words, is the…
F'x
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votes
1 answer
How to get PDF box size from CGPDFPage
I'm getting errors however I try to get the mediabox of a PDF Page in Swift.:
if let pdf = CGPDFDocument(pdfURL) {
let numberOfPages = pdf.numberOfPages
for index in 0...numberOfPages {
let pdfPage = pdf.page(at: index)
…
benwiggy
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0
votes
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How to get values out of these callbacks when reading a PDF?
I am trying to read a PDF file. Below callbacks also print the messages but there's nothing I can get out of the PDF.
let pdfBundlePath = Bundle.main.path(forResource: "sample", ofType: "pdf")
let pdfURL = URL.init(fileURLWithPath:…
Hemang
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0
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Swift dictionary doesn't want to populate from C Callback function
I'm writing a PDF Parser in Swift and I've reached the point where I get all the font data with a callback function (CGPDFDictionaryApplyFunction), the getFont function is supposed to populate the fonts dictionary in the PDFFontCollection…
Michael Schmid
- 15
- 4
0
votes
0 answers
Coding a PDF Text Parser in swift
I'm currently developing a pdf text parser completely in swift.
I was looking trough the PDFKittens code and found this in the stringwithpdfstring method (In SimpleFont.m) taking a CGPDFStringRef as parameter.
const unsigned char *bytes =…
Michael Schmid
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- 4