pdf to image saves only the last page when page_number=-1 (instead of saving all PDF pages in save_folder)

[anassibnoualii]

Description

I'm currently using the pdf to image keyword as described in the documentation, which:

Converts pdf to image - .png format.
Args:
path (str): path to the .pdf file
save_folder (str): path to the save folder
name (str): name of the file of the image to be saved
number_page (str): page from the pdf document to be saved as image.
If value is -1, then saves all pages as separated .png files.

However, when I set page_number=-1, it does not save all pages. Instead, only the last page of the PDF is converted into a PNG file.

Environement

• Python version: 3.11.13

• Libraries used:

- watchui==2.0.13
- robotframework==7.3

Example Test Case

*** Settings ***
Documentation    Simple PDF to image conversion test
Library          WatchUI

*** Variables ***
${PDF_PATH}      ./pdf_test.pdf
${IMG_NAME}      image
${PAGE_NUMBER}   -1

*** Test Cases ***
Convert PDF To Image
    [Documentation]    Convert PDF file to image format
    pdf to image    ${PDF_PATH}    name=${IMG_NAME}  page_number=${PAGE_NUMBER}

Steps to reproduce :

1. Download and extract the attached ZIP file watchui-pdf.zip

2. Open a terminal and navigate into the project directory:

   cd watchui-pdf

3. Install required dependencies:

   pip install -r requirements.txt

4. Run the Robot Framework test:

   robot pdf-to-image.robot

Expected behavior
The script should generate multiple image files in the output folder:

image_1.png
image_2.png
image_3.png
...

Actual behavior

Only one image file is generated:

image.png

And it represents only the last page of the PDF.

---

Please let me know if I might be missing something.

Thanks for your time and for maintaining this valuable library!

[anassibnoualii]

Hey, any update on this issue?
It's been a few days since I opened it and just wanted to check if it's on the radar.
Thanks!