Adding annotation in Pdf - iphone

How can I add annotation to an existing pdf file? I saw libHaru library.But it doesn't allow editing existing file. How can i overcome it?

After running into this issue recently, I had to piece together a few ideas to make it work.
A few questions:
What type of annotation are you doing?
Do you have a png file of the pdf?
What are you doing with the file after it is appended?
Hi-level:
Convert pdf to image file either programmatically or before adding to the bundle.
Have appending done and saved on another layer of the view (OpenGL as an example).
Merge/Combine the two image layers.
Draw new combined image pdf.

Related

How to add an image to a pdf using Capacitor pdf-generator plugin

I’m using capacitor pdf-generator plugin to create a pdf. I managed to do so as long as the html code is limited to non image tag, code in which I inject some dynamic data by nesting variable using ${ }.
Now, my aim is to bind the src attribute of an ```img`` tag to a variable so that I can change the logo displayed in the created PDF.
Where I fail: what appears on the PDF is a white space with dashed borders (check picture attached). So I guess that the path must be correct because if not it would show the missing icon (issue I went through before I could format correctly the path).
Anyone who already had that trouble?
Finally bypassed this issue by storing the base64 data when selecting a logo and using it directly in the img tag.
<img src="data:image/png;base64,${base64data} " />
You can convert the images to base64 here https://www.base64-image.de/
then add the codes directly to your image tag

Create And Display A PDF File In Ionic 3

How to create PDF file and display as per our design.
customize PDF layout and add image and table create in PDF file.
i have send image this type i want to create pdf file .
Here is plugin called pdfmake. It will help you to create pdf of images. You can customise many of things for creating pdf like page size, table, fonts etc.
Following are some of the tutorial which will help you to guide :
https://medium.com/#rakeshuce1990/ionic-how-to-create-pdf-file-with-pdfmake-step-by-step-75b25aa541a4
https://ionicacademy.com/create-pdf-files-ionic-pdfmake/
I have used it in my project to creating pdf of images and working properly, so may it will help you.

tinyMCE - is it possible to prevent the cut and paste of images (base64) in the textbox?

TinyMCE 4: I have implemented the image file/upload from local source, using php to save the uploaded file into a directory, with tinyMCE referencing this image. Works fine. This leaves a simple html text file to save in the database.
However, I see that the user can just cut and paste an image directly into the textbox, resulting in the image showing up and becoming a base64 image string, which defeats the purpose of storing only html text. Now the text could become extremely long if this base64 image is not prevented.
Is there a way to prevent this image paste action in tinyMCE? Or better yet, a way to automatically convert this paste into an image file and have it stored in the same place as the other images on the fly?
I know I could convert base64 images to a jpg files and store after submitting the form to a php handler, but would seek a simpler answer if possible.
The documentation is your friend for this issue. TinyMCE can certainly help you convert the images on the fly as they are pasted into the editor:
https://www.tinymce.com/docs/advanced/handle-async-image-uploads/
You can also stop the images from appearing in the first place if that is your preference:
https://www.tinymce.com/docs/plugins/paste/#paste_data_images

UIView to Editable PDF. Possible?

I am trying to convert a UIView to pdf (iOS). I managed to do it by using renderInContext. However, it captures the whole UIView as an "image" which is not really what I want. The questions and answers I found on stackoverflow gives me the same result of using the renderInContext.
I want to convert the whole UIView (with my textfields etc.) to editable pdf. Which means the pdf file after converting still enables the user to edit what was already written in the textfields in the pdf (the pdf file will be sent to email and edited in the computer).
Is this possible? If so, how can I go about doing this?

Drawing to existing PDF

When i did CGContextCreateWithURl(url) it created empty context even though i passed url of existing file. How to get the context of existing PDF file?
From my experience you can't actually draw directly to an existing pdf:
Convert pdf to image
Draw new content to that image
Convert appended image to pdf
Not the smoothest, but it works.
the URL isn't an input. It's where you want the context to write the resulting PDF to.
From the documentation:
url
A Core Foundation URL that specifies where you want to place the resulting PDF file.