I want to create PDF file which contains images and text.
The text length for PDF is not sure.
So How do I determine the number of pages the PDF will going to create ?
Related
I upload the pdf file from storage.
I'm trying to place the signature image at the bottom of every single page of pdf file and save as new pdf file using flutter.
I don't know how to do that? I tried my sample but I didn't find the solution I wanted. Please suggest me any flutter plugins or packages.
The idea is very simple: it consists of reading the pdf file as images
(one image per page), and then create a pdf, having as background one
of the retrieved images.
this article explains what u need
https://medium.com/flutter-community/edit-a-pdf-in-flutter-6a80f8aa7dfd
My Desktop App is creating a single page pdf with itextsharp library.There are 40 Passport size photos with names under it on a single page.
I need to flatten this pdf page (with 40 photos) as one Image while creating the pdf,currently there are 40 individual photos on the pdf page.I presume it would create around 80 layers by default which would take a very high time on ripping this file for printing on a press.
I dont want to make all the 40 images as one jpeg externally using GDI+ and then lay it in pdf.
I have seen many options using stamper and reading the created pdf file to flatten.Is there a way while creating the pdf i can create a flattened file.
Your understanding of flattening a PDF is completely wrong. The concept of flattening a PDF means: removing all interactivity. For instance: you have a PDF file with form fields. The content of these form fields can be changed in Adobe Reader. When you flatten such a form, you take away the form fields and replace the field content by actual content of the page. The result is a flat PDF in the sense that people can no longer change the content of the fields.
You presume that having multiple pictures on a single page in a PDF means that there are multiple layers in that PDF. Your understanding of layers in a PDF is completely wrong. Layers is a word that is used in many different contexts. For instance, when working with optional content groups (OCG), people often refer to layers.
The concept of layers as you may know it from Photoshop doesn't really exist in PDF. Content is added in a stream. Whatever content is added first, can be covered by content that comes after. You want to pro-process the content by removing all the content that isn't visible in the hope that the PDF will be printed faster. You want to achieve that by replacing many different image objects by one image.
Your assumption that this can be done with iText is wrong. iText doesn't convert PDF to an image. This is outside the scope of what iText is written for.
If you want to add X images as 1 single image using iText, then you have to process the X images into 1 single image before you add the images to the PDF. You need image manipulation software, because iText won't do what you're asking for.
I'm using iTextSharp to fill a PDF form, and I want the PDF to be transformed into a flat PDF.
I tried using PdfStamper.FormFlattening, but it only "locks" the form, which can be unlocked easily.
I want the resulting PDF to be as the file generated when you "Print as PDF" the PDF form. Smaller with all static text (no more form).
Thanks
We have pdf files which have mixed data of text and images. We can get text and images separately but how we can get text and image with same exact format on pdf file? like 3 line of text and then image and again text etc...
Is it possible to convert a PDF page in to HTML format using any objective-c library. I want to enable the text selection on PDF files.
#swiecki approach is not valid for pdfs
My suggestion is to use CoreText and add an overlay over the pdf view.
But it will be a long and tedious process as you need to parse the pdf to find coordinates of every letter.