Guides & tips for working with PDFs
Practical how-tos, behind-the-scenes notes, and product updates from the team behind Blackpdf.
Edit & organize
Rearrange pages, add page numbers, rotate, watermark, and flatten.
Edit & organize
Rearrange pages, add page numbers, rotate, watermark, and flatten.
How to Add Page Numbers to a PDF
Add page numbers to a PDF: pick the format, position, font, and starting number. Step-by-step guide for documents that need a clean numbering scheme.
How to Flatten a PDF (And When You Actually Need To)
Flatten a PDF to bake annotations, form fields, signatures, and layers into the page. Step-by-step guide, plus when flattening is required and when it isn't.
How to Extract Pages from a PDF
Pull specific pages out of a PDF as a new file. Step-by-step guide for extracting one page, a range, or every page individually.
How to Rotate a PDF (Fix Sideways Pages)
Rotate pages in a PDF document: all pages at once, just the sideways ones, or one page at a time. Step-by-step guide with the permanent-rotation gotcha.
How to Add a Watermark to a PDF
Add a text or image watermark to a PDF: presets like Confidential and Draft, custom text, opacity, rotation, and position. Step-by-step guide.
How to Delete Pages from a PDF
Remove blank pages, covers, or anything else you don't want from a PDF. Step-by-step guide with bulk selection and tips for large documents.
Delete, Extract, or Split a PDF? When Each One Is the Right Tool
Three tools, three different goals: delete the pages you don't want, extract the ones you do, or split a file into multiple PDFs. Here's how to pick the right one.
How to Merge PDFs Into One File
How to merge PDFs into a single document: drag, reorder, combine. Includes page-level merging and what to do for password-protected or large files.
How to Split a PDF Into Multiple Files
Step-by-step guide to splitting a PDF online: by page range or into individual pages. Free, no installation required.