Guides & tips for working with PDFs
Practical how-tos, behind-the-scenes notes, and product updates from the team behind Blackpdf.
Organize
Extract, reorder, number, watermark, and crop pages.
How to Save One Page of a PDF as a Separate File
Just need page 7 out of a 60-page document? Here's the fastest way to save a single page — or a handful — as its own PDF, and how to grab many pages as separate files at once.
How to Add a Logo Watermark to a PDF (Brand Your Documents)
Put your company logo on every page of a PDF. How to get a clean transparent image, where to place it, and the opacity that brands without distracting.
How-ToHow to Add a DRAFT or CONFIDENTIAL Watermark to a PDF
Stamp DRAFT, CONFIDENTIAL, or COPY across every page so nobody mistakes a working document for a final one. The opacity, rotation, and tiling settings that make it work.
How to Insert a Blank Page Into a PDF
Add an empty page anywhere in a PDF — for double-sided printing, section breaks, or a notes page. Step-by-step, plus the page-size detail worth knowing first.
How to Add Pages to a PDF
Insert pages from another PDF at any position in your document — not just at the end. How the gap-click insert works, and when to use it instead of merging.
How to Remove White Margins from a PDF (Auto Crop)
Trim the wasted white space around your PDF's content automatically. How Auto Crop detects content bounds — per page — and when to reach for it instead of manual margins.
How to Crop Only Certain Pages of a PDF
Need to crop one page, or a few — not the whole document? Here's how to target specific pages with a custom range, and what happens when pages end up different sizes.
How to Crop a PDF for Kindle and Tablets (Bigger Text, Less Squinting)
PDFs are painful to read on a small screen because the margins waste it. Cropping the white space makes the text render larger — here's how to do it properly.
How to Skip the Cover Page When Adding Page Numbers to a PDF
Don't want a number on your cover or contents page? Here's how Start from Page and Start Numbering at work together so numbering begins on the right page — with the right number.
How to Add Roman Numerals to a PDF (i, ii, iii)
Number front matter with Roman numerals and the body with Arabic numbers, the way books do. How to do it in two passes, and when lowercase vs uppercase is right.
How to Add "Page 1 of 10" to a PDF
Add page numbers that show the total too — Page 1 of 10, 1/10, or 1 - 10. Which format to pick, why it matters for printed documents, and how the total is counted.
How to Extract Meesho Tax Invoices (Supplier Panel PDFs)
Meesho's supplier panel bundles the GST tax block with the shipping label on one PDF. Here's how to auto-extract just the Meesho tax invoices in bulk for your records.
How to Extract Flipkart Tax Invoices (Seller Portal PDFs)
Flipkart's seller portal bundles the GST tax invoice with the shipping label on one PDF. Here's how to auto-extract just the Flipkart tax invoices in bulk for your records.
How to Extract Amazon Tax Invoices (Seller Central PDFs)
Amazon Seller Central bundles a Tax Invoice / Bill of Supply with the shipping label on one PDF. Here's how to auto-extract just the Amazon tax invoices in bulk for GST records.
How to Auto-Crop Tax Invoices from E-commerce PDFs
E-commerce order PDFs bundle a shipping label with a GST tax invoice. Here's how to auto-extract just the tax invoices in bulk from Flipkart, Amazon, and Meesho downloads.
How to Crop Meesho Shipping Labels (Supplier Panel PDFs)
Meesho's supplier panel bundles the shipping label with a tax invoice on one PDF. Here's how to auto-crop just the Meesho labels in bulk and print them on a 4×6 thermal printer.
How to Crop Flipkart Shipping Labels (Seller Portal PDFs)
Flipkart's seller portal puts the shipping label and tax invoice on one PDF. Here's how to auto-crop just the Flipkart labels in bulk and print them on a 4×6 thermal printer.
How to Crop Amazon Shipping Labels (Seller Central PDFs)
Amazon Seller Central ships the label and a tax invoice on one PDF. Here's how to auto-crop just the Amazon shipping labels in bulk and print them on a 4×6 thermal printer.
How to Auto-Crop Shipping Labels from E-commerce PDFs
Flipkart, Amazon, and Meesho ship a label and a tax invoice on the same PDF. Here's how to auto-crop just the labels in bulk and print them on a 4×6 thermal or A4 printer.
How-ToHow to Rearrange and Organize PDF Pages
Reorder, rotate, delete, and insert PDF pages from one drag-and-drop view. How to sort pages, fix a scanned-out-of-order document, and when to organize vs. merge or split.
How-ToHow to Crop a PDF (Trim Margins or Adjust Pages)
Crop margins from a PDF or trim pages to a specific area. Step-by-step guide with auto-crop, precise margin values, and per-page versus whole-document crops.
How-ToHow 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 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 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.
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.