Free Online PDF Tools
Merge, split, rotate, compress and read PDFs with qpdf, Ghostscript and poppler — the same tools a print shop uses, which is why page moves keep bookmarks and links instead of flattening them. Your document is uploaded to do that and deleted within 30 minutes.
Shrink, redact and clean up
Make a PDF smaller or safer to send. Redaction here removes the pixels rather than drawing a black box over text that can still be selected.
Delete PDF Pages
Remove pages you do not want and keep the rest. Type the page numbers or ranges to drop and the tool shows you exactly which pages survive before anything is written, so a typo becomes something you notice rather than something you discover later. The document is rebuilt with qpdf, which moves the page objects rather than redrawing them, so bookmarks and links survive — and the original file on your device is never modified.
Extract Images from PDF
A PDF carries its photographs as separate objects inside the file. This pulls them out exactly as they were stored — the original pixels, not a re-render of the page they sit on — and shows you what is in there before you download anything.
Flatten PDF
Flatten a filled PDF by converting its interactive AcroForm fields into static page content. The values remain visible, but the fields are no longer editable or interactive in the downloaded copy. Appearance streams are generated before flattening, so what the recipient sees is what you saw. Flattening is useful before sharing a completed form or sending it into a workflow that should not allow another editor to change field values. It does not repair a damaged PDF, remove annotations unrelated to form fields, create a PDF/A archive, or certify that the displayed appearance is legally sufficient. Keep the editable source until the static copy has been reviewed.
Organize PDF Pages
See every page as a thumbnail and drag it where it belongs. The pages are moved, not redrawn — the same page objects end up in a different order, so bookmarks, hyperlinks, form fields and selectable text all come through untouched.
Compress PDF to a Target Size
Upload forms and email systems often reject a PDF by size, not by quality. This tool lets you choose a maximum target such as 100KB, 500KB, or 1MB and tries progressively smaller page images until the result fits. It downsamples the images inside the document to reach the target, and leaves text, vectors, forms and links intact. Until 2026-08-26 it worked by rasterizing every page, which did destroy all of those — that is no longer the case.
PDF Compressor
Reduce PDF size by downsampling the images inside it, without pretending every PDF can shrink by the same percentage. Ghostscript rewrites the document with object streams, compressed content streams and blank document metadata removed, and the actual byte result is reported rather than a promised percentage. PDFs built from large photographs may not become smaller because their image data is already compressed; PDFs with repetitive structure or unnecessary metadata have more room to improve.
PDF Metadata Sanitizer
A PDF can carry document properties that are easy to overlook when a file is shared: an author name, a project title, a subject, keywords, or the software that created it. This sanitizer clears the standard document information fields and gives you a new copy. It does not claim to remove every hidden object, attachment, annotation, signature, or XMP packet, so the result explains its boundary instead of promising forensic erasure.
PDF Redactor
Redact a rectangle on one PDF page without leaving that page's old text underneath a black drawing overlay. The browser renders the chosen page with pdf.js, paints an opaque black rectangle into the page pixels, and rebuilds the PDF with that page replaced by a raster image. Other pages are copied unchanged and remain text-based, so this is a page-only redaction utility rather than a claim of complete document-wide redaction.
Protect PDF
Put a password on a PDF before you send it. The file is encrypted with 256-bit AES and the password you choose both opens the document and controls printing, which is what people mean by protecting one. Write the password down before you download — there is no recovery, here or anywhere, and that is the point of encryption working properly.
Repair PDF
A PDF that will not open is usually not destroyed — its index is wrong, and readers give up at the first bad offset even though the pages are still there. This rebuilds that index by scanning the file for the objects themselves, and tells you in plain words what was broken rather than handing back a silent download.
Unlock PDF
Remove a password from a PDF you can already open. Type the password once, and what comes back is the same document with the encryption taken off — useful when a bank statement or a payslip arrives locked and you need to merge it, print it, or stop typing the password every time you look at it. It cannot recover a password you do not have, and nothing here tries to.
Stamp, sign and arrange
Add something to a finished document — page numbers, a watermark, a signature, a form value — or turn its pages the right way up.
Add Page Numbers to PDF
Stamp page numbers onto a finished PDF, choosing the format, the position, and which page the numbering starts on. Skipping a cover page and beginning at one on the page after it is a single instruction rather than a workaround, because that is what almost every real document needs. The file is rewritten in this single pass, with the numbering format you choose.
PDF Form Filler
Fill an interactive PDF form and download a copy with the values drawn in. The tool discovers AcroForm text fields, checkboxes, and dropdowns, gives each field an accessible input, and writes a new PDF while leaving the original untouched. You can keep the fields editable for a later review or flatten them into page content before sending the result. A scanned or already-flattened form is reported honestly because it has no field data to fill.
PDF Signature
Place a typed name and optional date on one PDF page, then download a new copy. The signature uses an italic document font so it reads like a simple electronic approval mark, and the original stays untouched. This is a visual annotation utility, not a certificate-backed digital signature: it does not verify identity, protect against later edits, or replace a signing workflow that requires legal or cryptographic evidence.
Watermark PDF
Stamp DRAFT, CONFIDENTIAL, or any text of your own diagonally across the pages of a PDF. The size is calculated from each page's diagonal so a short word fills the page and a longer phrase still fits inside the corners, and the opacity keeps whatever is underneath readable. Everything happens in this single pass, and the file is deleted as soon as the response is sent — which matters given what people usually mark confidential.
Rotate PDF
Turn pages that came out sideways or upside down and save the correction into the file, so it stays fixed for everyone who opens it. You can rotate the whole document or just the pages that need it, and the rotation is added to whatever the page already had — which is why a scan that is already at an odd angle ends up straight rather than back where it started.
Merge, split and convert
Combine several PDFs into one, break one into many, or change the whole document at once.
Grayscale PDF
Convert the first pages of a PDF into a grayscale, image-based PDF locally. Each page is rendered, its pixels are converted to luminance, and the result is rebuilt as a monochrome-looking document. This can help preview a black-and-white print, reduce color distractions, or prepare a visual handout for a printer. The tradeoff is important: rasterization removes the original selectable text layer, links, form fields, vector paths, and some accessibility structure. It is not an archival PDF/A converter or a lossless text-preserving operation. Keep the original and use the downloaded copy only when an image-based grayscale result is actually wanted.
Merge PDF
Combine any number of PDFs into a single document, arranging the order before you commit. Pages are copied across exactly as they are — no re-rendering, no re-compression — so the merged file looks identical to its sources. Everything is a single pass on the server, which means no watermark and no per-page charge — and your documents are deleted within 30 minutes.
Split PDF
Break one PDF into several, either a file per page, fixed-size groups, or ranges you define. Before anything is written the tool lists exactly which output files it will create and warns you about any pages that would be left out entirely. Output filenames are zero-padded so they sort correctly, and everything runs in one pass on the server.
Read, extract and compare
Get text or pages back out of a PDF, or find what changed between two versions of the same document.
Extract PDF Pages
Pull a chapter, a section, or a single page out of a document and save it as its own PDF. You list the pages to keep and everything else is left behind. The extracted pages are copied rather than re-rendered, so the new file is identical in quality to the original, and the whole operation happens inside a single pass on the server.
PDF Diff
Compare two PDF files and see exactly what changed between them. The diff reads the selectable text layer from both, compares matching page numbers, and shows additions and removals in context. It exists because a PDF can look nearly identical while a date, amount, paragraph or footnote has changed. Your documents stay in the tab. Scanned pages with no text layer need OCR before text comparison can work.
PDF to Text
Pull the text out of a PDF with its line and paragraph structure reconstructed, page by page or all at once. A PDF does not actually store lines — it stores glyphs at coordinates — so the structure is rebuilt from where the text sits on the page. When a document turns out to be a scan with no text layer at all, the tool says so plainly rather than reporting an empty result.