RT#7799: Issue with Converting Text Files to PDF

[rakunavi]

Hello all,

I am reporting an issue in the "Convert Text Files to PDF" feature.

In the "Text Encoding" options, there are several "Auto-Select" settings: some limited to specific languages and one general "Auto-Select" (detect all). I have noticed that when any of these "Auto-Select" options are chosen for text files using legacy (non-Unicode) encodings, the resulting PDF is blank. Upon checking the Contents pane, no objects exist at all, suggesting the conversion process itself might be failing or skipping the content.

• figure1.png
  
  
  figure2.png

While "Text Encoding" is usually detected automatically when files are added, a user might manually select these "Auto-Select" options if the initial detection fails but the language is known, or simply to reset the encoding setting to "Auto-Select" for multiple files.

I have prepared a verification video and sample files to demonstrate this. For the test, I generated Lorem Ipsum text for various languages and saved them using all available legacy encodings supported by Notepad++.

The video demonstrates the following steps:

1. Loading all text files and converting them to PDF using the default detected settings (Works correctly).
2. Loading the files and manually changing the "Text Encoding" to the language-specific "Auto-Select" before conversion (Results in blank pages).
3. Loading the files and batch-changing the "Text Encoding" to the general "Auto-Select" before conversion (Results in blank pages).

Note: In the video, I enabled "File Separator" (titles and bookmarks) for clarity. As a result, the attached PDF file displays objects corresponding to these separators in the Contents pane, but contains no other objects. If you disable the "File Separator" option, the PDF will contain no objects at all.

Furthermore, this issue is not limited to complex languages; even a simple text file containing only ASCII characters (0-127) results in a blank PDF if any "Auto-Select" option is manually selected.

I have attached the video, input text files, and output PDF files for your review.

• video.webm

• SampleFiles.zip

Hoping that the above information will be of some help to you.
Thank you so much for your continued support.

Best regards,
rakunavi

- PDF-XChange Editor PRO Version: 10.8.4 build 409
- OS Version: Windows 11 Pro / Home 25H2 Build 26200.8037
- PC Model: GMKtec Nucbox M7 Pro with HUION Kamvas Pro 19 / Lenovo IdeaPad C340-15IWL

[EDIT] Since a ticket has been officially issued for this request, I have changed the topic title as follows. 2026-3-25 6:02 JST (UTC+9)

• Previous Title: Issue with "Auto-Select" in Text Encoding resulting in blank pages during "Convert Text Files to PDF"
• New Title: RT#7799: Issue with Converting Text Files to PDF

[Sean - PDF-XChange]

Hi Rakunavi,

Thanks, I have let the team know.

Kind regards,

[Sean - PDF-XChange]

Update - a ticket has been made in relation to this issue:

Ticket #7799: Issue with Converting Text Files to PDF

Kind regards,

[rakunavi]

Thank you, Sean, for creating the ticket!

Thank you for taking time out of your busy schedule.
Please give my best regards to developers.

Best regards,
rakunavi

[Daniel - PDF-XChange]