Part of the content is not displayed

[QM36]

Attach (recommended) or Link to PDF file here: test.pdf

Configuration:

• Web browser and its version: chrome 92.0.4515.107
• Operating system and its version: maxos catalina 10.15.7
• PDF.js version: 2.11.56
• Is a browser extension: no

Steps to reproduce the problem:

1. open https://mozilla.github.io/pdf.js/web/viewer.html
2. upload my file

What is the expected behavior? (add screenshot)

What went wrong? (add screenshot)

Due to some reasons, some of the content is not displayed, but I am not sure what the specific reason is. Our project is using pdfjs. I would like to ask you to help analyze the reason. Thank you for your reply.

[Snuffleupagus]

The document contains corrupt font data, which even Adobe Reader (i.e. the PDF reference implementation) cannot render successfully. When opening the document in Adobe Reader, a warning is displayed saying (essentially) that some of the fonts can't be loaded:

In PDF.js the following errors are logged in the console:

PDF 8555560c4c194bf88a7734c2625f418a [1.7 - / WPS 演示] (PDF.js: 2.11.22) viewer.js:1489:13
downloadable font: CFF : Failed validating CharStrings INDEX (font-family: "g_d0_f1" style:normal weight:400 stretch:100 src index:0) source: (invalid URI)
downloadable font: CFF : Failed to parse table (font-family: "g_d0_f1" style:normal weight:400 stretch:100 src index:0) source: (invalid URI)
downloadable font: rejected by sanitizer (font-family: "g_d0_f1" style:normal weight:400 stretch:100 src index:0) source: (invalid URI)
downloadable font: font load failed (font-family: "g_d0_f1" style:normal weight:400 stretch:100 src index:0) source: (invalid URI)
Warning: Failed to load font 'g_d0_f1': 'SyntaxError: An invalid or illegal string was specified'. pdf.js:899:13
downloadable font: CFF : Failed validating CharStrings INDEX (font-family: "g_d0_f2" style:normal weight:400 stretch:100 src index:0) source: (invalid URI)
downloadable font: CFF : Failed to parse table (font-family: "g_d0_f2" style:normal weight:400 stretch:100 src index:0) source: (invalid URI)
downloadable font: rejected by sanitizer (font-family: "g_d0_f2" style:normal weight:400 stretch:100 src index:0) source: (invalid URI)
Warning: Failed to load font 'g_d0_f2': 'SyntaxError: An invalid or illegal string was specified'. pdf.js:899:13
downloadable font: font load failed (font-family: "g_d0_f2" style:normal weight:400 stretch:100 src index:0) source: (invalid URI)
downloadable font: CFF : Failed validating CharStrings INDEX (font-family: "g_d0_f3" style:normal weight:400 stretch:100 src index:0) source: (invalid URI)
downloadable font: CFF : Failed to parse table (font-family: "g_d0_f3" style:normal weight:400 stretch:100 src index:0) source: (invalid URI)
downloadable font: rejected by sanitizer (font-family: "g_d0_f3" style:normal weight:400 stretch:100 src index:0) source: (invalid URI)
downloadable font: font load failed (font-family: "g_d0_f3" style:normal weight:400 stretch:100 src index:0) source: (invalid URI)
Warning: Failed to load font 'g_d0_f3': 'SyntaxError: An invalid or illegal string was specified'. pdf.js:899:13
Warning: Optional content group not found: null 2 pdf.js:899:13

[vokmar]

Have you solved this problem?