Fix a PDF a portal won't accept

What you need this for

• A bank statement or PDF/A file that a tax portal reports as invalid.
• A long document that exceeds a page limit and must be split.
• Several PDFs that must be uploaded as one file.

How it works

1. Drop the PDF and choose: regenerate, flatten, split, merge, reorder or crop pages.
2. Check the preview of the pages.
3. Download the new PDF and try the upload again.

All actions in this task

• Regenerate PDF

  Rebuilds a rejected PDF page by page; text becomes image.

• Repair references

  Fixes wrong internal references when a PDF is reported as damaged.

• Flatten form

  Turns filled form fields into fixed page content.

• Merge or extract pages

  Merges up to five PDFs or saves selected pages.

• Sort, rotate, delete, split pages

  Page preview with drag, rotate, delete and split into several files.

• Crop page margins

  Trims white margins or unwanted edges from pages.

• Add page numbers

  Numbers every page for printing or submission.

• Protect with a password

  Encrypts the PDF with AES-256; it can't be opened without the password.

• Redact and sanitise

  Permanently covers areas; the result contains no hidden text.

• Watermark pages

  Adds text or an image to all, even or odd pages.

• Fill form fields

  Fills text and checkbox fields without a form app.

• Change title and author

  Changes the document details shown in PDF viewers.

• PDF to images (JPG, PNG, WebP)

  Saves pages as images, for forms that only accept photos.

Limits

• Regenerating turns pages into images: searchable text, links and digital signatures are lost.
• Password-protected files must be opened with the password first; Refentra does not remove protection.

Questions

Other tasks

• Make a PDF small enough to upload↗
• Turn photos and scans into one PDF↗
• ELSTER
  ELSTER: Beleg zu groß für die Belegnachreichung?↗