PDF & printing

PDF conversion, page order, text extraction and print preparation.

37 troubleshooting guides · Page 1 / 2

1. How do I merge PDFs in the right order without losing the originals?

   A successful merge needs both the intended file order and a check of the resulting pages. Some interactive PDF features do not survive page copying.

2. Why is my compressed PDF not smaller, and which compression mode should I use?

   Structural optimization and image compression make different changes. A file that is already efficient may not become smaller.

3. Why does PDF text extraction produce no text from a scanned document?

   A page can look like text while containing only a picture of the page. Existing text extraction and OCR are different operations.

4. Why does PDF export report an unsupported character or font error?

   Text-to-PDF and PDF text-overlay tools use a bundled font with explicit script support. Silently replacing missing characters would produce an unreliable document.

5. Does cropping a PDF permanently remove the hidden text?

   Does cropping a PDF permanently remove the hidden text.

6. Which edge is “top” when cropping a rotated PDF page?

   Use the page as it appears in the preview.

7. How do I fit a US Letter PDF onto A4 without stretching its artwork?

   How do I fit a US Letter PDF onto A4 without stretching its artwork.

8. Why does a correctly sized PDF print smaller than its stated dimensions?

   The print dialog may apply “fit” or another scaling rule.

9. How do I extract pages 2, 5 and 6 into one PDF?

   Enter 2, 5-6 in the page-range field of https://kitforma.com/en/pdf-extract-pages/.

10. The page says “1” but the extractor selects the cover. Why?

    Printed page labels can restart after covers or front matter.

11. How can I split one PDF into several chapter files in one operation?

    Use separate page groups in https://kitforma.com/en/pdf-split/, following the semicolon-separated example in the interface.

12. Why does removing every page from a PDF produce an error?

    A useful PDF output must retain at least one page.

13. Why does the PDF flatten tool say there are no form fields?

    A page can look like a form while containing only printed boxes or a scanned image.

14. Why can I edit some PDF form fields but not others?

    Fields may be read-only or use an unsupported type.

15. Why is my typed answer rejected by a PDF dropdown field?

    Choice fields have a defined set of allowed values.

16. A PDF field rejects a long address. Should I remove parts until it saves?

    Do not silently remove essential information.

17. Why can a password-protected PDF render but not pass every editing tool?

    Rendering and structural editing are different operations.

18. Can I merge a signed PDF and still treat the result as the original signed document?

    Can I merge a signed PDF and still treat the result as the original signed document.

19. Does removing PDF metadata also remove private text and attachments?

    Treat metadata removal as a narrow step.

20. Why can text stop being selectable after converting a PDF to grayscale?

    KitForma’s https://kitforma.com/en/pdf-grayscale/ renders the selected pages into grayscale images and creates a new PDF.

21. Can selecting a small page range for raster compression omit the other pages?

    Yes: raster output is built from the selected pages.

22. Why can a small PDF fail an image export at very high DPI?

    Compressed file size does not describe the memory needed to render its pages.

23. Should I export a PDF diagram as PNG or JPEG?

    For small text, sharp lines and flat-color diagrams, start with PNG in https://kitforma.com/en/pdf-to-images/.

24. Why does a PDF image export have a white background instead of transparency?

    https://kitforma.com/en/pdf-to-images/ renders each page on a white background in the current implementation, including PNG output.

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