PDF Editor Tools

What these PDF editor tools do

Most PDF jobs are not really editing. They are rearranging. Someone sends three separate files that should have been one. A scanner delivers every other page upside down. A ten-page contract needs page four sent to a colleague and nothing else. A document going out for review needs DRAFT across it so nobody mistakes it for final.

That is what this set covers, in six tools on one page: merge, split and extract, delete and rotate pages, watermark and page numbers, images to PDF, and PDF to JPG. Each one is a few clicks, there is no account, and there is no queue.

The part that matters most is where the work happens. These PDF editor tools run entirely inside your browser. The file is read from your disk, changed in memory and written back to your downloads folder. It is never uploaded, never queued on somebody's server and never stored anywhere you cannot see.

A note on spelling, since it brings people here: this page is often searched for as pdf aditor tools. It is the same thing — editor is the correct spelling, and the tools above are what you were looking for.

Why in-browser processing matters for PDFs

Think about what people actually put in PDFs: contracts, invoices, bank statements, medical letters, passport scans, exam papers, signed agreements. Then think about what a typical online PDF tool does with them. The file is uploaded to a server in a country you did not choose, processed there, stored for some retention period, and deleted at some point according to a policy you did not read.

For a holiday itinerary, who cares. For a client contract or a scan of someone's ID, that is a data transfer you may not be allowed to make. Many workplaces have rules about it, and under data protection regimes such as the GDPR or India's DPDP Act, pushing personal data through a random third-party processor is a decision with consequences rather than a convenience.

Browser-based tools sidestep the question entirely. Nothing is transferred because nothing needs to be. Two practical side effects prove it: these tools keep working if you disconnect from the internet after the page loads, and the speed depends on your own computer rather than on someone's server queue.

The trade-off is honest. Your device does the work, so a 200 MB scanned document on an old phone will be slow, and a few heavy jobs such as true image recompression are better left to desktop software. For the everyday jobs above, the exchange is well worth it.

Using each tool

Merge PDFs

Add two or more files, then use the arrows to put them in the order you want. The arrows matter more than people expect: files sort by whatever your operating system decides, which is rarely the order a document should read in. Merge and the combined file downloads. Bookmarks and form fields from the originals are not carried over, so if those matter, check the result before sending it.

Split and extract

Load one PDF and type the pages you want, in plain notation: 1-3, 7, 10-12. Three modes: keep those pages, remove those pages and keep the rest, or break the document into one file per page. Extracting is the polite way to share a single clause or a single invoice without handing over the whole file.

Delete and rotate

This one shows thumbnails of every page, drawn on your own machine. Rotate individual pages, or rotate everything at once when a whole scan came out sideways. Mark pages for deletion and they grey out. Nothing is applied until you download, so you can change your mind freely, and Undo all changes puts everything back.

Watermark and page numbers

Set the text, position, size, opacity and colour, and optionally add page numbers in three formats. Diagonal at low opacity is the classic draft stamp. Numbers along the bottom are what you want for anything that will be printed and discussed in a meeting.

Images to PDF

Select JPGs or PNGs and get one PDF with an image per page. Choose A4, Letter or a page that fits each image exactly, set a margin, and let orientation follow each picture or force all pages one way. This is the tool for turning phone photos of receipts into something you can attach to an expense claim.

PDF to JPG

Choose a quality level and, if you want, a page range. Each page is rendered and saved as a JPG. Use 2x for screens and 3x if the image is going into print. Your browser may ask once for permission to save multiple files.

What a PDF editor cannot do, and why

This is where most frustration with PDF tools comes from, so it is worth being clear.

A PDF is a description of a finished page. It stores glyphs at coordinates, not sentences in paragraphs. When you open a Word file, the software knows "this is a paragraph" and can reflow it when you add a word. A PDF has no such concept: it knows there is a letter "t" at a particular point on the page, in a particular font, at a particular size. Delete a word in the middle of a line and nothing moves to fill the gap, because there is nothing that understands the line as a line.

Good desktop editors work around this with clever reconstruction, and they are genuinely useful, but even they struggle with unusual fonts, multi-column layouts and anything scanned. The practical rule, which will save you hours: if you need to change the words, change the source document and export a new PDF. Treat the PDF as the printed output it was designed to be.

Merging and splitting without losing things

• Check the order before you merge, not after. Renaming files 01, 02, 03 before you start is the simplest fix for a recurring job.
• Watch for mixed page sizes. Combining A4 and Letter pages produces a document that prints inconsistently. Merge like with like where you can.
• Extract rather than send everything. If somebody needs page six, send page six. Oversharing a full document is how confidential pages end up where they should not be.
• Expect to lose bookmarks and form fields. Merging flattens structure. If the original had a clickable table of contents or fillable fields, verify the merged file still behaves.
• Name the output usefully. contract-signed-2026-09.pdf beats merged.pdf the day you need to find it again.
• Keep the originals until you have opened the result and checked it. Every page, not just the first.

Watermarks that do their job

A watermark communicates status. It says draft, confidential, sample, or "this copy belongs to a particular person". Used well it prevents a genuinely expensive mistake: an unfinished document being treated as final.

• Keep opacity low, around 10 to 20 per cent. A stamp that fights the text gets removed, and then nothing is marked.
• Diagonal for status, footer for attribution. DRAFT across the middle, "Confidential — prepared for Acme Ltd" along the bottom.
• Say something specific. "DRAFT — not for circulation" is more useful than "DRAFT".
• Add the date for versioned documents, so the reader knows which draft they are holding.
• Check it prints. Very light grey can vanish on some printers, which defeats the point.

Making a PDF smaller

File size is nearly always images. A text-only PDF of fifty pages might be 300 KB; add ten phone photographs and it is 40 MB. So compression means re-encoding those images at a lower resolution or quality, which is heavy work and easy to do badly.

Better approaches, in order of how well they usually work:

1. Export correctly in the first place. Almost every program that produces PDFs offers a quality setting. "Standard" or "screen" instead of "high quality print" often cuts the size by 80 per cent with no visible difference on screen.
2. Shrink the images before they go in. A 12-megapixel photo of a receipt is wildly more detail than anyone needs. Resize to around 1,500 pixels on the long edge first.
3. Scan at a sensible resolution. 200 to 300 DPI is right for documents. 600 DPI quadruples the size for no practical gain on text.
4. Split the document. If it is only going over email because of a size limit, sending chapters separately is often simpler than degrading the whole file.
5. Use desktop software such as Ghostscript-based tools or your PDF application's built-in optimiser for anything serious. They do this far better than a browser can.

Passwords, protection and proper redaction

Two kinds of password

PDFs support a user password, which you must type to open the file at all, and an owner password, which allows opening but restricts printing, copying or editing. Both encrypt the contents. The tools on this page detect encryption and stop with a clear message, because forcing an encrypted file through would produce a damaged document rather than an edited one. Remove the protection in the program that applied it and work on the unprotected copy. Neither password type, incidentally, is a substitute for simply not sending the file to the wrong person.

Redaction is deletion, not covering

This is the most damaging PDF mistake there is, and organisations that should know better make it repeatedly. Drawing a black rectangle over a name, or highlighting it in black, changes only what you see. The text is still in the file. Anyone can select it, copy it out, or extract it with a script in seconds. Courts, newspapers and government departments have all leaked sensitive information exactly this way.

Real redaction removes the underlying content and is offered by proper PDF software as a distinct feature, usually called "redact" or "sanitise". If you do not have that, the safest route is to convert the page to an image, black out the area in an image editor, and rebuild the PDF from the image. Slow and crude, but the information is genuinely gone. The PDF to JPG and Images to PDF tools above will handle both halves of that process.

One more thing to check before sending any document: metadata. Author name, the software used, sometimes the original file path, and previous revision data can all sit inside a PDF. Your PDF viewer's document properties will show you what is there.

Scans, OCR and searchable text

A scanned page is a photograph. There is no text in it, which is why you cannot search or select anything and why a grammar or word count tool will find nothing. Optical character recognition reads the image and adds an invisible text layer underneath, so the page looks identical but becomes searchable and selectable.

OCR is not included here because doing it well needs a large language model file and a lot of processing, which makes for a poor browser experience. Good options exist elsewhere: most scanner software offers it at scan time, which is by far the easiest moment to do it; desktop PDF applications include it; and Google Drive will perform OCR when you open a PDF with Google Docs.

Two tips that improve results more than any setting: scan straight, because skewed pages confuse recognition badly, and scan at 300 DPI in good contrast. Recognition quality depends far more on the input than on the software.

Mistakes to avoid

• Trusting a black box as redaction. The most expensive item on this list.
• Uploading confidential files to unknown web tools. Ask where the file goes before you click.
• Not checking the merged result. Open it and scroll the whole thing.
• Sending the entire document when one page was requested.
• Flattening a form by accident. Some operations turn fillable fields into plain text; keep the original.
• Watermarking the file you will later need clean. Always stamp a copy.
• Forgetting metadata when a document is going outside your organisation.
• Re-exporting repeatedly. Each round of compression degrades images a little more.

If you also need to produce PDFs rather than edit them, our free invoice generator creates a clean PDF invoice in the same way, entirely in your browser.

Frequently asked questions

Open a file and try it

Pick the tool that matches the job, drop the file in, and check the result before you send it on. Nothing leaves your computer at any point, so you can use these on documents you would never upload anywhere. Back to the tools.