Free PDF Tools Guide: Merge, Split, Compress and Edit PDFs Without Uploading Them

PDF is the format people trust for documents that must look the same everywhere: CVs, contracts, bank statements, certificates and invoices. That same reliability makes PDFs awkward to change. You often need to join two files, send only three pages of a long statement, or get a scan under an upload limit, and most online services ask you to upload your document to their servers first.

Our PDF tools take a different approach. All 11 run inside your browser, using your own device to do the work, so your files are never uploaded^[1]. That matters most for exactly the documents people usually need to edit: ID copies, salary slips, contracts and statements. This guide explains what each tool does, when to use it, and how to combine them.

Why PDFs need their own tools

A PDF is a fixed-layout document: text, fonts, images and page geometry are stored together so the file prints and displays the same on any device. Adobe created the format, and Adobe's own explainer describes how it later became an open international standard^[2]. Libraries and archives treat it as a preservation format for the same reason, as the Library of Congress format description explains^[3].

Because a PDF stores finished pages rather than editable paragraphs, the useful operations are page-level ones: combining, separating, reordering, rotating, removing and stamping pages, plus converting pages to and from images. Those are the jobs our tools cover.

Combine and separate documents

Merge PDF joins several PDFs into one file. Drop your files, arrange or remove them, and download one combined document. It is the tool for job and university applications that accept a single upload, or for an expense claim with several receipts. A simple trick: name files with numbers (01-cv.pdf, 02-letter.pdf) so they load in the right order.

Split PDF does the opposite. Enter page ranges such as "1-3, 4-6, 7-10" and each range downloads as its own PDF; leave the ranges empty to split every page into a separate file. Use it to separate chapters of a report or to break a scanned batch into individual documents.

Extract PDF Pages is the quickest way to share one section of a large file. Tick the pages you want to keep, and they are saved as one new PDF: a single invoice from a statement, or the signature pages of a contract. Your original stays unchanged.

Clean up pages

Delete PDF Pages removes pages you do not need: blank pages from a scanner, duplicate scans, cover sheets, or pages with private information you should not share. Keep your original until you have checked the new file.

Reorder PDF Pages moves pages up and down, which fixes double-sided scans that came out in the wrong order or puts a summary page at the front. It works well after Merge PDF: combine first, then reorder the result.

Rotate PDF fixes sideways and upside-down pages by 90°, 180° or 270°. You can rotate every page, or only the pages you list (for example "2, 5-7"). The rotation is saved in the file, so pages display correctly in every reader and when printed.

Shrink files for email and upload portals

Compress PDF has two modes, and both run in your browser. Lossless only rebuilds the file's structure and removes redundant data such as duplicate objects and unused resources, so nothing about the document changes. Target size is for upload portals with a limit: enter it, for example 100 KB, and the tool compresses the pictures inside the PDF until the file fits, while text and fonts stay sharp and selectable. If a limit cannot be reached without making the text hard to read, it says so and gives you the smallest readable version instead of a blurry one. Pages are ready for the usual limits: compress a PDF to 100 KB, to 200 KB and to 500 KB.

Scans and photo-heavy PDFs shrink the most with Target size, because they are mostly image data. PDFs that are almost all text and embedded fonts shrink less — remove pages you do not need, or split the file, if a portal still rejects it. If you scan often, scanning at 150–200 DPI in grayscale creates much smaller files from the start.

Convert between PDFs and images

JPG to PDF turns phone photos or scans (JPG or PNG) into a single PDF, one image per page, in the order you choose. It is ideal for photos of ID cards, certificates and receipts that a form wants as one PDF. Photograph documents in good light on a dark background for clean pages.

PDF to JPG and PDF to PNG go the other way, rendering each page as an image. Use JPG for photo-heavy pages and sharing in chat apps; use PNG for diagrams, forms and text-heavy pages, because PNG keeps lines and text perfectly crisp. Both let you choose 1× for previews, 2× for most uses or 3× for print-quality images.

Mark documents as yours

PDF Watermark stamps text such as "CONFIDENTIAL", "DRAFT" or "For bank account opening only" across every page. Set the colour, opacity and angle. Around 20–30% opacity keeps the page readable, and a diagonal angle near 45° is harder to crop out. Watermarking copies of ID documents with their purpose is a good habit: it limits what a copy can be reused for.

Which tool should you use?

• One file from many: Merge PDF, then Reorder PDF Pages if needed.
• Part of a file: Extract PDF Pages for a few pages, Split PDF for several pieces at once.
• A file that is too big: Compress PDF, in Target size mode for a portal limit such as 100 KB.
• Sideways or messy scans: Rotate PDF and Delete PDF Pages.
• Photos into a document: JPG to PDF.
• A page as a picture: PDF to JPG or PDF to PNG.
• Sharing a sensitive copy: PDF Watermark.

Privacy: why "in your browser" matters

Each of these tools reads your file with your browser's own processing, and the result is saved straight back to your device. Nothing is sent to a server, so there is no copy of your document on someone else's machine and no waiting for uploads on a slow connection^[1]. It also means large files are limited only by your device, not by an upload limit.

If you work with PDFs regularly, start with Merge PDF. It is the one most people need first, and it pairs naturally with the rest of the set.