text extraction issue

[techiek77-ui]

Description

Not able to extract text from attached pdf

flyer.pdf

[kolkov]

Investigation Results

Hi! I've investigated this issue and text extraction is working correctly with the current version of gxpdf.

Test Results

Using the attached flyer.pdf, I successfully extracted 1,144 characters of text:

$ gxpdf text flyer.pdf

$1,000,000 221 Queen Street, Melbourne VIC 3000 apartment 2 1 1 Prince Cascading 1234-5678 Additional Information Land Size House Size Map Ref. Energy Rating Council Rates Water Rates 1171m2 - - - - - WARM BEAUTIFUL APARTMENT Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc turpis ante, fermentum ac cursus vitae, tempus vel ipsum. Proin justo lorem, mattis sed pharetra ac, vehicula tincidunt sem. Mauris est leo, scelerisque at gravida vel, interdum quis felis. Nullam nibh magna, consectetur eu aliquet ac, sollicitudin eget nisl. Praesent nibh tellus, elementum ut scelerisque a, pretium eget libero. Morbi sodales tincidunt turpis et sagittis. Aenean sed dictum nisi. Phasellus quis metus lectus. Donec varius pellentesque purus, et ornare enim pellentesque sed. Morbi quam augue, pulvinar sit amet mollis in, euismod porta orci. Quisque rutrum egestas enim ac viverra. Mauris blandit tristique feugiat. Ut molestie molestie turpis sed elementum. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas in nunc odio. Nunc sagittis, mi ut ornare pellentesque, orci augue dapibus est, vel rutrum elit orci vel augue.

PDF Details

• Version: PDF 1.4
• Producer: Prince 8.1 (www.princexml.com)
• Pages: 1
• Encrypted: No

Can You Provide More Details?

To help diagnose the issue, could you please share:

1. What command or code did you use to extract text?
2. What error message did you get (if any)?
3. What version of gxpdf are you using? (gxpdf version)
4. How did you install gxpdf — go install, go get, or compiled from source?

If you're using an older version, please try updating:

go install github.com/coregx/gxpdf/cmd/gxpdf@latest

Please let me know if you're still experiencing issues, and I'll be happy to help further!

[techiek77-ui]

• What command or code did you use to extract text?
  gxpdf.Open("flyer.pdf")
numPages := doc.PageCount()
page := doc.Page(i) // i is simple int index in a for loop starting with 0
  text := page.ExtractText()
• What error message did you get (if any)?
  getting blank text string
• What version of gxpdf are you using? (gxpdf version)
  require github.com/coregx/gxpdf v0.2.1 // from go.mod
• How did you install gxpdf — go install, go get, or compiled from source?
  go get

[kolkov]

Thanks for the details! Your code is correct — Page(0) + ExtractText() is the right approach.

We found that ExtractText() was silently swallowing errors — returning "" with no way to know what went wrong. Same issue with ExtractTextFromPage() which called ExtractText() internally, losing the error.

This has been fixed in PR #39 (merged to main):

• ExtractTextFromPage() now calls the extractor directly and properly returns errors
• ExtractText() (and other convenience methods) now log errors via slog instead of silently discarding them

To update:

go get github.com/coregx/gxpdf@main

After updating, try:

text, err := doc.ExtractTextFromPage(1) // 1-based page number
if err != nil {
    fmt.Println("Error:", err)
}
fmt.Println(text)

If you still get a blank result, enable logging to see what's happening:

import "github.com/coregx/gxpdf/logging"

logging.SetLogger(slog.New(slog.NewTextHandler(os.Stderr, &slog.HandlerOptions{
    Level: slog.LevelWarn,
})))

Please let us know if this resolves your issue!

[techiek77-ui]

Working with latest update, thanks.