Error opening files generated with itext7 with adobe reader - itext7

I have a basic code that opens a pdf, fills a couple of fields and then save again. File canĀ“t be opened with Adobe Reader, popup appears with message "the document is damaged and cannot be repaired". I can open file with any browser. Problem is just with Adobe Reader.
How i can solve this?

Related

How to copy/paste a text-box from a Word document to a PDF file?

I have a problem with copy/paste text-boxes from a Word document to a PDF file. I have the text-box already made in my Word document with specific colour, text-size,
etc.
When I try to copy it and paste it in a PDF it just turns to an image, so i cannot add any changes on the text which is already inside the box. Is there a way to get the text-box in the PDF file as a text-box and not as an image?
No need to copy the text-box element over. Just export the Word Document as a PDF and open into Acrobat.
If you're struggling to edit files, check your acrobat package is supported to allow you to modify .pdf's? If you are just using Adobe Acrobat Reader this would cause this issue, you would need Adobe Acrobat Pro.
Hope I'm of help
-Stuart

TCPDF display blank page suddenly in Laravel

I used TCPDF in Laravel project for output pdf that was couple weeks ago. It worked perfect. I copy the project folder for backup. Today I tried to output pdf. Error 503 shows up. so I used backup data but it also problem browser ask me to open pdf or save pdf, when I open it it's all white blank pdf page. I'm guessing Is it my CDN problem?
I need pdf output function. Could you teach me what is cause please? and also if you have recommendation. I would like to know other PDF output library.

how to read pdf with google OCR Text in uipath

I am new in uipath, I am using PDF Activity to read Pdf text with Google OCR, because I want to get pdf text with images in it.
First I have used only Pdf Text,It worked perfectly.
Then I have used Pdf with OCR Then It is showing this Error.
But when I run it It is giving this error:-
"Google OCR : Error performing OCR: TessErrorLoadEngine"
Please help me to read the Pdf file.
Use google OCR activity to read image based pdf files. Checkout sample flowchart that I have created for you.
enter image description here
You can convert PDF containing Images into readable PDF using Online PDF Conversion site and then use the PDF Text activity with new PDF.

Export to PDF file

I am evaluating Teechart 4.1.2012.2287 and I have a problem with the export to PDF function.
My project is written in VS2010, using VB.Net and framework 4.0, and I have Adobe Reader 9.4.7 on my PC.
When I try to open a PDF generated by TChart it says there is an error with the file.
I also get this problem using your Example application.
Is there a version requirment for the Reader?
I'm afraid this is a bug. I get this error message:
An error exists on this page. Acrobat may not display the page
correctly. Please contact the person who created the PDF document to
correct the problem.
Do you get the same? Anyway, I added the issue (TF02016129) to the bug list to be investigated.

Exporting Base64 image data / Canvas to PNG, JPG and PDF in GWT

Here is my first time that I want to raise my issue here. As the title now I have a trouble with exporting a base64 image data to PNG, JPG, and PDF in GWT so I need your help from you. Let I give you an overview what I want to do:
Please have a look here: http://testingqr.appspot.com/ This is my app to generate a qrcode. After process of customization the Qrcode, I want to export the QR code in the canvas to png,jpg and pdf. To do that I will add 3 buttons are "Export to PDF" "Export to PNG" "Export to JPG" after press on each of these button, a Download Dialog will appear (Save as dialog) to let user choosing the location they want to save to and the extension of the file too (Such as C:\test.png)
I already use dataToURL function to get a base64. I used CanvasTo Image library from this link http://www.nihilogic.dk/labs/canvas2image/ But it will download the image from canvas with no Save as dialog and no extension in FF or chrome (IE does not support for HTML5 Canvas). So that I cant export PNG and JPG. This is my first problem.
The second problem is exporting PDF in GWT, I want to work with an open source library. I tried PDF Box http://pdfbox.apache.org/userguide/cookbook.html But now it just supports the JPG type. I want something that convert to PDF from base64. Do you have idea to help me do exporting to PDF process. What I want is after I press on "Export to PDF" button, a dialog will appear to let me save the QRcode in PDF file to my local location.
So thank you all for any help. Have a nice day.
Michael Vu

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