This tag should only be used for questions related to PDFKit which is available for iOS as of iOS 11.0 and macOS as of 10.4.
PDFKit is a framework for iOS and macOS. Display and manipulate PDF documents in your applications.
Questions tagged [ios-pdfkit]
131 questions
1
vote
1 answer
How can I properly pass an array in iOS PDFKit
I'm trying to in an [string] array for a PDF. Below is what I have so far. I am guess I need to do a foreach somewhere, but I'm not entirely sure.
I thought something like this might work, but it does not.
for entry in body {
let…
Robert
- 809
- 3
- 10
- 19
1
vote
0 answers
PDFKit how to erase Ink annotation
I have followed some examples on the internet and I was able to draw Ink annotation using PDFKit . the problem now is that if I toggle button and choose eraser, how can I erase the annotation that I draw . I searched on the internet and tried some…
Sam
- 67
- 1
- 6
1
vote
1 answer
Why am I not able to load valid PDF file with WKWebView?
I am trying to load PDF from URL using WKWebiew using following code and I have also added necessary delegate methods of WKWebiew.
func loadPDFDocument()
{
if let url = URL(string: self.contentURL)
{
print("URL: \(url)")
…
NSPratik
- 4,714
- 7
- 51
- 81
1
vote
0 answers
iOS PDFKit memory peak on device when zooming
I have a PDFView in a container view which has a pinch gesture recognizer. When I zoom on a real device memory gradually peaks up to 2-3 gb and crashes. On simulator memory won't even go above 20mb on a 100 pages sample pdf. What seems to be the…
x670
- 75
- 6
1
vote
2 answers
How to detect the orientation of a PDF page in Swift with PDFKit IOS
I'm trying to get the orientation property of a PDF document. The purpose is, I would like to add a button widget in a location that depends on the orientation of the PDF document.
For example:
func openPDFDocument() {
if let…
Rami Ammoun
- 855
- 2
- 10
- 25
1
vote
0 answers
How to reduce the memory spike while zooming pdf PDFKIT?
I'm working on pdf ink annotation using apples PDFKit, when I do good amount of annotations and start zooming the pdf page, I notice spike in memory usage and as a result the pdf page hangs while zooming.
I checked several answers and yet no…
Raj Kiran
- 152
- 1
- 9
1
vote
1 answer
How to draw a line/stroke with custom pattern/image using core graphics?
Im working on a pdf annotation app, as of now i'm able to draw a line using image in "PDFAnnotationSubtype.stamp".
Image:
using below code:
public class ImageAnnotation: PDFAnnotation{
init(with image: UIImage!, forBounds bounds: CGRect,…
Raj Kiran
- 152
- 1
- 9
1
vote
1 answer
Is it possible to detect PDFView notifications with Coordinator in UIViewRepresentable?
I'm having great difficulty working out how to implement a PDFView using UIViewRepresentable.
I understand that I can get variables from SwiftUI -> UIKit via a simple Binding.
I understand that I need to use a Coordinator to detect PDFView…
swift--help
- 637
- 5
- 15
1
vote
1 answer
How I can move/drag multiple views on pdf view?
What I am doing is that, I took pdf view, it contains one sample pdf.
On top of that, I am adding more than 1 signatories(custom view) views, when user click on add button from navigation bar.
Scene 1: When add first Signatory view (customview) on…
Nikita Patil
- 674
- 1
- 7
- 17
1
vote
0 answers
How do I password Protect a PDF / Encrypt a PDF in swift
I am trying to export a PDF with a password protection.
Currently, My app directly exports the PDF File to the iOS Files app...
How do I password protect it before exporting it?
Here's my current code, Please do let me know what I have to change to…
user12808336
1
vote
0 answers
How do I use background fetch in iOS 13 to update pdfs?
I watched many videos and read many articles about the new background fetch in iOS 13, but I am still in the dark. I am making a dining app. Amongst other things I am presenting the menu for "today", which is changing every day. So far I use the…
JPJerry5
- 107
- 10
1
vote
0 answers
How to cache a PDFDocument?
I am trying to cache a PDFDocument downloaded from Firebase but it is not working.
I am using PDFKit to display the pdf.
Here is the code I have:
let cache = NSCache()
func downloadPDF() {
var thePdf =…
Noah-1
- 396
- 1
- 5
- 20
1
vote
0 answers
Is there a way to write into a CGPDFDictionaryRef (PDFKit)?
I can see a lot of methods to get values, I can even nicely map out the entire PDF into a dictionary (see this thread).
But I could not find a way to write back into those dictionaries. I really just want to turn off a layer visibility. Just set a…
Geri Borbás
- 15,810
- 18
- 109
- 172
1
vote
1 answer
PDFPage's "setBounds" not crop the annotations applied to pdfpage
I am setting bounds of pdfpage to crop the page. it crop the page but not the annotations applied to it.
page.setBounds(rect, for: .cropBox)
by this code annotation applied to page will show over the cropped page as in image
Spanix Dev
- 101
- 6
1
vote
1 answer
Rotate PDF page with usePageViewController
I am working on PDFKit and try to rotate the page. It is rotating good but without using usePageViewController. With usePageViewController it won't update the frame of the page.
// At defining PDFVIEW object
pdfView.displayMode =…
Spanix Dev
- 101
- 6