Promvel
Privacy-first processing

Split PDF custom files from one source document

Use custom files mode to define page ranges directly (press Space or Enter to commit tokens), then export a split ZIP.

Every custom output must include valid page ranges from the source PDF. Validate page groups before generating outputs so each custom file contains the exact intended pages.

Workflow

  1. 1Upload source PDF
  2. 2Switch to custom files mode
  3. 3Define file groups by page ranges
  4. 4Generate split ZIP output

3 custom files example (pages tokens)

File 1
1-5 8
File 2
1-4 9-14
File 3
1-10

How matching works

  • Each token can be a single page (for example, 8) or a range (for example, 1-5).
  • Press Space or Enter to commit each token in custom files mode.
  • Committed tokens are merged as one page set for that file (for example, 1-5 + 8).
  • All pages must be 1-based and within the uploaded source PDF page count.

Token entry behavior

In /split-pdf custom files mode, add page tokens directly and commit each token with Space or Enter.

Custom files mode rules

Pages tokens are the primary input in custom files mode.

  • Page indices are 1-based and must exist in the uploaded source PDF.
  • Type a range like 1-3, then press Space or Enter to commit the token.
  • Ranges can be mixed with single pages, for example: 1-3,7,10-12.
  • Duplicate pages inside one custom file should be deduplicated or rejected explicitly.

Common errors

  • missing_required_pages_token
  • invalid_page_token: 2--5
  • page_out_of_bounds: 27
  • empty_custom_file_pages