PDF and document utilities: guides

170 guides in this section. Pick the question closest to yours, or browse by tool.

• How to merge PDF files into oneCombine several PDF files into one in the order you want, free, with no sign-up and without uploading your files to any server.
• How to extract pages from a PDFHow to take specific pages out of a large PDF and save them as a separate file, or split it into several files, with how to type page ranges.
• How to turn photos into one PDFTurn photos of documents and receipts from your phone into one tidy PDF, choosing the page size, margins and how each photo fits the page.
• How to delete pages from a PDFRemove one or more pages from a PDF right in your browser, and make sure the deleted pages are not left hidden inside the new file.
• How to reorder the pages of a PDFHow to reorder the pages of a PDF using real thumbnails of each page, by dragging or with buttons, and download a new copy while your original stays untouched.
• How to rotate PDF pagesHow to rotate all pages of a PDF or chosen pages by 90 or 180 degrees and save the right orientation for good, with no loss in content quality.
• How to convert PDF pages to imagesHow to turn PDF pages into images, what DPI means, what pixel size you will get before converting, and when to choose PNG or JPEG.
• How to copy text from a PDFHow to extract the text stored in a PDF page by page, why nothing comes out of scanned pages, and what sometimes happens to Arabic text.
• How to add page numbers to a PDFHow to add page numbers to a finished PDF in a format like “Page 1 of 9”, start after the cover, and choose the position, size and color.
• How to add a watermark to a PDFHow to put text like “Confidential” or your store logo on the pages of a PDF with the opacity and angle you choose, and why a watermark is not real protection.
• How do I put a whole month of order invoices into one PDF for my accountant?A tidy way to put a month of order invoices into one PDF in date order, check the page total before merging and number the pages afterwards.
• I have 35 PDFs but the merge tool only takes 20 at a time. How do I combine them all?The tool merges up to 20 files per round. Here is how to combine 35 in two rounds without breaking the page order, and when page count becomes the real limit.
• Why didn't merging make my PDF smaller, and what do I do when it is now too big to email?Merging is not compression: a merged PDF weighs about the same as its parts. Here are the honest options when the result is over your email limit.
• My PDF opens without a password, so why does the merge tool say it is protected or encrypted?Some PDFs open normally yet carry encryption that restricts editing or printing. Why the merge tool refuses them, and how to get a copy you can legitimately merge.
• Will merging a digitally signed contract with other files break its signature?A digital signature covers the original file's exact bytes, so it cannot stay valid inside a merged PDF. How the tool warns you, and why you merge first, then sign.
• Why did the bookmarks sidebar disappear from my PDF after merging?Bookmarks belong to the whole document, not to a page, so they are not carried into a merged PDF. How to keep a long merged file easy to move around in.
• I merged a fillable PDF form with other files and the fields stopped working. What should I do?Interactive form fields are not carried into a merged PDF. The reliable order: fill the form, save a flattened copy, then merge that copy with your other files.
• How do I insert one PDF into the middle of another instead of at the end?The merge list orders whole files, so inserting mid-document takes one extra step: split then merge, or merge then reorder pages. When to use each.
• How can I attach my company profile page at the front and my terms page at the back of every quotation?Keep your company profile page and terms page as two ready PDFs and wrap them around each quotation in under a minute, with the details on page sizes and naming.
• My file ends in .pdf but the merge tool says it is not a valid PDF. Why?The merge tool reads what is actually inside a file, not its name. A renamed Word file, a photo or a broken download is refused. How to tell which and fix it.
• A registration form lets me upload only one file, but I have my trade licence, VAT certificate and ID. What do I do?When a registration form accepts a single file, combine your trade licence, VAT certificate and ID into one PDF in the requested order, without an upload site in between.
• Does a merged PDF keep the author name, software and other hidden details of the original files?The originals' title, author and software details are not carried into a merged PDF. What sits on the pages, and inside embedded photos, does come across as it is.
• The merge tool says the total page count is above the tested limit. How do I combine very long files?The merge tool takes 500 pages per file and 2000 in the merged file. How to split huge sets into volumes it accepts, and why volumes are better for readers anyway.
• How do I send my catalog to customers on WhatsApp Business as one file instead of five separate ones?Merge your catalog sections into one PDF in reading order, lead with the cover because it is what shows in the chat, and check the size before you send.