Edit a PDF in your browser

What the PDF Editor does

The PrintablesWorld PDF Editor is a free, private, no-sign-up editor for PDF files. Open a PDF — or drag one onto the window — and you get a full editing surface: annotate, add and edit text, draw, highlight, sign, redact, fill forms, insert tables and images, reorganise pages and download the result as a normal PDF. There is no watermark, no page cap and no account.

Everything happens on your device. The file is parsed, rendered and rebuilt in your browser; it is never sent to a server. That makes it suitable for contracts, invoices, medical forms, ID scans and anything else you would not want to upload to a stranger's website.

Getting started

1. Open a PDF. Click Open, or drop a file anywhere on the page. Password-protected PDFs prompt for the password. Open also takes pictures — JPG, PNG, WebP, GIF, BMP, AVIF, SVG and the HEIC an iPhone shoots in — and builds a PDF out of them, one page per picture, so a photographed document can be edited like any other file.
2. Pick a tool from the left-hand rail. Hover any icon to see what it does.
3. Work on the page. Click or drag on the page itself; the bar across the top changes to show the options for whatever you are doing or have selected.
4. Manage pages in the Pages panel, or open the grid organiser from the top bar.
5. Download. Press Download PDF and your edits are baked into a fresh file.

The toolbox

• Select / Move — click an object to select it, drag to move, and drag across empty space to rubber-band several at once. Drop a selection onto a different page to move it there.
• Resize, rotate and mirror anything — every object you place gets eight handles and a rotation knob: pull a corner or an edge to resize it, and swing the knob above it to turn it to any angle. Hold Shift while turning for 15° steps, or while pulling a corner to swap between keeping a picture's proportions and stretching it freely. Lines and arrows give you their two ends instead of a box. The badge on the corner mirrors the object left to right, and the bar at the top mirrors it top to bottom — which is what you want for an iron-on transfer or a signature facing the wrong way. You can also type an exact angle up there, or nudge it 90° at a time. Resizing a text box scales the type itself, because that is what the PDF stores — there is no invisible box around it. Delete is in the top bar, and on the Delete key.
• Duplicate — hold Alt and drag an object to leave the original where it is and pull a copy out of it, the way every design tool works. Alt+D (or Ctrl/Cmd+D) and the duplicate button in the top bar both drop a copy just beside the original. Copies keep everything — angle, mirroring, colour, opacity, the lot — and a whole multi-selection duplicates in one go.
• Add text — click anywhere to place a text box; choose from the three built-in PDF fonts or sixteen open-licensed web fonts (sans, serif, mono and handwriting), which are subset and embedded in the download.
• Edit existing text — click a line of the PDF's own text and replace it. The patch behind it samples the real page background, and the replacement font, weight, slant, size and ink colour are inferred from the original.
• Markup — underline, strikethrough or squiggly under any run of text.
• Callout — drag from the thing you want to point at to where the note should sit; you get an arrow plus a text box in one gesture.
• Highlight, pen, rectangle, ellipse, line, arrow — the usual annotation set, with colour and thickness controls.
• Image — click to place a picture, or drop image files straight onto a page. JPG, PNG, WebP, GIF, BMP, AVIF, SVG and the HEIC an iPhone shoots photos and screenshots in all work.
• Signature — draw, type or upload a photo; an uploaded signature has its paper background removed automatically.
• Sticky note — pin a comment to the page; all notes are listed in the comments panel.
• White-out — cover a mistake with a patch that matches the surrounding page colour rather than plain white.
• Redact — permanently destroy content: redacted pages are rasterised with the boxes burned in on download.
• Stamp — APPROVED, DRAFT, CONFIDENTIAL, REJECTED, COMPLETED, FINAL, VOID, SIGN HERE or PAID, in your choice of colour.
• Table — drop in a grid of up to 12 × 8 cells and type into it.
• Form field — draw real interactive AcroForm text fields, checkboxes and dropdowns that stay fillable in the exported PDF.
• Measure — drag between two points for a reading in points, millimetres and inches.
• Move part of the page — draw a box around a logo, QR code, icon or chart already printed on the page and it becomes a normal movable, resizable object. Clicking an embedded image does the same thing.
• Crop — drag the area to keep, on this page or on all of them.
• Hyperlink — drag a box and give it a URL; it exports as a real clickable link annotation.
• Fill form fields — if the PDF already has a form, fill it in and the values are flattened into the download.

Pages

The Pages panel shows a live thumbnail of every page. Drag them to reorder, or use the per-page buttons to rotate, duplicate, move or delete. The grid button in the top bar opens a full-screen organiser for the same job with more room. You can add a blank page — plain, ruled, 5 mm grid, dot grid or letterhead — and merge another PDF in at any position you choose.

Document tools

• OCR — recognise text in scans, in 25 languages, entirely in the browser. Recognised words become editable and searchable, and an invisible text layer goes into the download.
• Search & replace — across the whole document, including OCR'd text.
• Compress — re-render at 150, 120, 96 or 72 dpi and see exactly how much smaller the file got.
• Password protect — encrypt the downloaded PDF so it needs a password to open.
• Split / extract — pull out a page range, or split the document every N pages into a ZIP.
• Compare — put another PDF side by side with yours and have the differing regions highlighted page by page.
• Print — send the edited document straight to your printer.
• Watermark, page numbers and Bates numbering — applied across every page, previewed on screen before you download.
• Convert — export pages as PNGs in a ZIP, extract the text as .txt, export to Word (.docx), or build a brand-new PDF from a set of images.

Which tool for which job

• "I have to fill in a form that isn't a fillable form." Use the Text tool and click where each answer goes — a printed-then-scanned form takes typed text perfectly well. If the PDF does have real fields, they light up automatically and you just type into them.
• "I need to sign and send this back." Signature tool: draw it, type it in one of seven handwriting styles, or photograph the signature you already wrote on paper — the page behind it is removed for you.
• "There's a typo in a document I no longer have the source of." Edit existing text — or just double-click the line with the Select tool.
• "An account number has to come out before I share this." Redact, not White-out. See below — the difference is whether the text is really gone.
• "The scan isn't searchable." Tools → OCR.
• "It's too big to email." Tools → Compress, and watch the before/after size.
• "The pages are in the wrong order / one is upside down / I need to add a blank." The Pages panel, or the full-screen grid organiser.
• "I only need pages 4–9." Tools → Split / extract.
• "Every page needs DRAFT across it, or numbering for a court bundle." Watermark, page numbers and Bates numbering, all previewed before you commit.

Editing text that is already in the PDF

This is the feature people most want and the one most often misunderstood, so it is worth explaining what actually happens. A PDF does not store paragraphs — it stores glyphs at coordinates, in fonts that are usually subsetted, meaning only the characters the document actually used were embedded. That is why editing a PDF is not like editing a Word file, and why this editor offers two different mechanisms:

• Edit existing text covers the original run with a patch matched to the page background and puts an editable box in its place, matching the font family, weight, size and ink colour as closely as it can. You can type anything at all, because the replacement text is drawn fresh with a font that has every character. This is the one to use for a typo, a changed date, a new price.
• Move original text does something quite different: it relocates the real glyphs by rewriting the page's content stream, so nothing is left behind and the type is untouched — same font, same hinting, same everything. It cannot change what the text says, only where it sits, and it will decline the job on pages whose structure makes a safe move impossible rather than move the wrong words.

Practical guidance: short edits to body text come out invisible. Editing text over a photograph, a gradient or a coloured panel is where the patch can show, because it has to guess a single background colour. And search & replace applies the same mechanism across every page at once, which is the fast way to change a name or a date that appears forty times.

Redaction done properly

There is a well-documented failure mode where an organisation "redacts" a document by drawing black boxes over it, and the text underneath is still selectable and copyable in the released file. This editor does not do that.

On download, any page carrying a redaction is re-rendered as an image with the boxes burned in, so the characters underneath are destroyed rather than covered. The trade is that the page becomes a picture: it stops being selectable text and the file gets larger. That is the correct trade when the point is that something must not be recoverable.

White-out is the other tool, and it is honest about being cosmetic: it lays an opaque patch over the area and leaves the page as text. Use it to tidy something up, cover a stray mark, or blank a field you are about to retype — never to hide something confidential.

Two things to remember whichever you use: check the pages either side, because sensitive details are often repeated in a header or a summary; and remember that document metadata (author, title, and the original filename) lives outside the page content.

OCR: making a scan searchable

A scanned page is a photograph of text. Nothing in it can be searched, selected or copied until something reads it, and that is what OCR does — here, entirely on your own machine, in any of 25 languages.

Run it from Tools → OCR. The first time you use a given language its recognition data is downloaded (your PDF still goes nowhere); after that it is cached. When it finishes, the recognised words become clickable and editable, the document becomes searchable, and an invisible text layer is written into the downloaded PDF so that other readers — and anyone you send it to — can search and copy from it too.

Accuracy depends almost entirely on the input. A straight, well-lit scan of ordinary printed text at 300 DPI is read almost perfectly. A photograph taken at an angle, a faded fax, an unusual display face or handwriting will produce mistakes — which you can correct by hand, since recognised words are editable. If a page is upside down or sideways, rotate it in the Pages panel first.

Forms and signatures

PDFs come in two kinds where forms are concerned, and the editor handles both. A real form (an AcroForm) has fields built into it; those appear as fields, you type into them, and the values are saved into the downloaded file. A flat form — a document that merely looks like a form, which describes most things that have been printed and scanned at some point in their life — has no fields at all, so you place text boxes, checkmarks and dates yourself. To the person receiving it, the two are indistinguishable.

You can also add fields — text, checkbox and dropdown — if you are the one sending a form out for someone else to complete.

For signing, there are three routes. Draw with a mouse, a finger or a stylus. Type your name and pick from seven signature faces. Or upload a photo or scan of your real signature, in which case the paper behind it is removed automatically so it sits cleanly on the page rather than in a white box. That removal is not a white-pixel trick: the brightness of the paper is measured separately across the picture, so a photo taken on a desk under one lamp — bright at one corner, shadowed at the other — comes out as clean as a flatbed scan, and cream or grey paper works too. Grit and camera speckle are dropped by size relative to your pen, so full stops and the dots on an i stay put. Three controls sit under the picker if the automatic result needs nudging: how faint a mark to pick up, what colour the ink should be, and whether to do any of it at all. Once placed, a signature can be moved and resized like any other object, and it is baked into the page on download. (Note that this is a visible, handwritten-style signature — the everyday kind that contracts and forms ask for — not a cryptographic digital certificate.)

Making a PDF smaller

Tools → Compress re-renders the pages at 150, 120, 96 or 72 DPI and tells you exactly what the file size did, so you can try one and step down if it is still too big. What drives PDF size is almost always embedded images rather than text, which is why re-rendering works and why a text-only document may barely shrink at all.

Two rules of thumb: 150 DPI usually looks unchanged on screen and is enough for ordinary printing; 96 DPI is the right choice for something that will only ever be read on a screen or attached to an email. If the document is black text on white and you do not need colour, running it through the PDF Converter's grayscale tool often saves more than compression does.

On a phone or tablet

Below 1024 px the editor rearranges itself into an app-style shell rather than shrinking the desktop layout. The tool rail becomes a scrolling dock of labelled icons along the bottom — because two dozen unlabelled glyphs is not a toolbox on a phone — the options bar sits directly above it, the pages and comments panels become overlay drawers, and dialogs become bottom sheets that clear the home indicator. Secondary controls collapse into a "⋯" menu so the top bar stays one row on a 320 px screen.

Drawing, dragging and the handles on every object are built on pointer events, so a finger or a stylus behaves exactly as a mouse does, and the touch targets grow on any device with a coarse pointer — including a touchscreen laptop. Pinch to zoom works on the page itself.

Limits worth knowing about

• Everything happens in your browser's memory. There is no page cap, but a 600-page document with high-resolution scans will ask a great deal of a phone. Split it first if it struggles.
• Editing text is a patch, not a reflow. Replacement text does not re-wrap the paragraph around it, so a much longer replacement needs the box resized by hand. For heavy rewriting, convert to Word in the PDF Converter, edit there, and convert back.
• Redacted pages become images. That is the point — but it means those pages stop being selectable text and the file grows.
• OCR is only as good as the scan. Straight, sharp, 300 DPI printed text is read almost perfectly; angled photographs, faded faxes and handwriting are not.
• Signatures here are visual, not cryptographic. They are the kind of signature a contract or a delivery note asks for, not a certificate-based digital signature with an identity behind it.
• The autosave is device-local and lasts three days. It is not cloud sync — the file will not follow you to another computer, which is the same trade that keeps it off our servers.

Comfort and safety nets

Undo and redo cover forty steps. Find (Ctrl/Cmd + F) highlights every match on every page and steps through them. A dark reading mode inverts the page on screen without touching the download. Pinch-zoom works on touch screens, and the toolbar, drawing and dragging are all built on pointer events, so a stylus or finger behaves the same as a mouse. Your session is saved locally as you work and offered back to you for three days, so a closed tab or a browser crash does not cost you the edit.

Privacy

Your PDF is never uploaded. It is opened, edited and rebuilt entirely on your own computer, and the finished file is saved straight back to your downloads folder. The autosave that lets you pick up where you left off is kept on your device too, and you can discard it from the restore prompt at any time.

Almost nothing travels over the network. The only exceptions are optional extras that carry no part of your document: if you run OCR, that language's dictionary is fetched the first time you use it; if you pick one of the decorative fonts for a text box, that font file is fetched so it can be embedded in your PDF; and if you upload a signature as a HEIC photo, the decoder for that format is fetched, because no browser but Safari can read HEIC on its own. In every case it is the tool that is downloaded, never your file that is uploaded. Your pages, your text and your signature never leave the machine you are working on.