PDF Blocks provides synchronous API operations for merging, splitting, watermarking, securing, and reorganizing PDF documents.

Use it from your agent

One ClawLink account serves every agent you run. Pick the guide for yours, or connect PDF Blocks once and call the same tools from all of them.

PDF Blocks for OpenClawInstall, pair, connect, first prompt

PDF Blocks for Hermes AgentInstall, pair, connect, first prompt MCPClaude Code, Cursor, any MCP clientCLI login or the remote MCP server

Setup

Connect PDF Blocks through ClawLink's hosted setup.

Auth: Paste one API key. The credential stays on the ClawLink server; your agent holds only a ClawLink key you can revoke.
Where: the ClawLink dashboard, or ask your agent to connect it.

What your agent can do

PDF Blocks exposes 17 tools through ClawLink.

Tool	What it does	Kind
`pdf_blocks_add_image_watermark`	Add a PNG or JPEG image as a watermark on all or selected PDF pages	Write
`pdf_blocks_add_password`	Create an encrypted copy of a PDF that requires a password to open	Write
`pdf_blocks_add_restrictions`	Create an encrypted PDF copy with explicit permissions for copying, editing, printing, forms	Write
`pdf_blocks_add_text_watermark`	Add up to three styled text lines as a watermark on all or selected PDF pages	Write
`pdf_blocks_extract_pages`	Create a PDF containing selected source pages in their original order	Read
`pdf_blocks_merge_pdfs`	Merge PDF files into one PDF in the exact order provided	Write
`pdf_blocks_remove_pages`	Create a PDF with selected pages removed while preserving the remaining page order	Write
`pdf_blocks_remove_password`	Create an unencrypted copy of a password-protected PDF using its current password	Write
`pdf_blocks_remove_restrictions`	Create a PDF copy with permission restrictions cleared	Write
`pdf_blocks_remove_signatures`	Create a PDF copy with all digital signatures and timestamps removed	Write
`pdf_blocks_reorder_pages`	Create a PDF in an exact page order, optionally dropping or repeating source pages	Read
`pdf_blocks_reverse_pages`	Create a PDF with the complete page order reversed	Read
`pdf_blocks_rotate_pages`	Rotate all or selected PDF pages by a supported multiple of 90 degrees	Read
`pdf_blocks_split_pdf_at_page`	Split a PDF into exactly two downloadable PDFs at a page boundary; the selected page starts the	Read
`pdf_blocks_split_pdf_by_page_count`	Split a PDF into consecutive downloadable PDFs containing up to a fixed number of pages each	Read
`pdf_blocks_split_pdf_by_page_groups`	Create one downloadable PDF for each caller-defined ordered group of source pages	Read
`pdf_blocks_split_pdf_by_size`	Split a PDF into downloadable PDFs no larger than a requested byte limit	Read