KAM PDFs v? · free forever · GitHub
Press Ctrl+K and type what you want to do. Every command is in there.
Shortcuts
Ctrl+K find any command · Ctrl+F find text
V select · T text · P pen · H highlight
R rect · E ellipse · L line · A arrow · W whiteout
Del delete · Ctrl+Z undo · Ctrl+Y redo · Esc deselect
Ctrl+C/Ctrl+V copy/paste · Ctrl+D duplicate · arrows nudge (Shift = 10)
←/→ or PgUp/PgDn pages · Home/End first/last
Ctrl+wheel zoom · Ctrl+click follow a link · Ctrl+S save · Ctrl+P print
Shift while drawing · square shapes, 45° lines
How do I…
Edit text that is already in the PDF
With Select chosen, hover over any text in the PDF and it lights up. Double-click a line to retype it where it is, in the PDF's own font, size and colour. In a paragraph, the words flow on to the next lines and back as you type, each in its own font, and a paragraph that grows takes a new line when there is room below it. A line on its own moves along as you type, keeping its alignment. Enter or Esc finishes. What you see is exactly what is saved.
Open PDFs straight from Windows
Right-click a PDF and choose Open with › KAM PDFs. To make KAM PDFs the app for every PDF, choose Open with › Choose another app, pick KAM PDFs and tick Always. In KAM PDFs installed from the website, Save then puts your changes straight back into that file (the browser asks you once), and Save As makes a copy.
Add your own text
Choose Text, then click to place it, or drag out a box first so the words wrap to fit. While you type, the colour, size, font, Bold and Italic controls change that box. Double-click it later to type in it again, or click it once to change how it looks. Paste an image from the clipboard with Ctrl+V.
Delete text from the PDF
Click a line of the PDF's own text and press Delete. The words are taken out of the page itself, and nothing around them moves; Ctrl+Z brings them back. A few lines, such as Arabic or Hebrew, are redacted instead: those show a red hatch on screen only, and clicking the hatch and pressing Delete again brings the words back.
Sign a document
Choose Sign, draw your signature once, and place it on the page. It is kept on this computer, in Document → Signatures: click one there to put it on the page, give it a name (Initials, say), or put it on every page at once. A photo or scan of your signature on paper works too: the paper is made see-through and the edges cropped.
Put a mark on every page
Select anything you have added, such as your initials, a stamp or a note, and click Every page, the button with two pages on it beside Delete. A copy goes at the same place on every other page, and one Ctrl+Z takes the copies off again.
Whiteout or Redact?
Whiteout covers things visually, but the words are still in the file and can be copied out. Redact removes them: when you save, that page is rebuilt from a picture of itself, so the hidden words are gone for good.
Reach a mark buried under others
The Layers tab lists everything you have added to the page, newest first. Select, hide, restack (drag a row) or delete anything. Text edits and deletions are listed too, quoting the words, so you can take one back. Double-click anywhere, even inside a whiteout, to type there.
Scan with your phone
Click Scan and point your phone at the QR code. Photograph pages and tap Send; they arrive straightened and cleaned up. No phone? Use the webcam or photos you already have.
Make a scan searchable
Document → Scanned pages → Read this page. The words are found on your computer and added to the saved PDF as invisible text, so you can search and copy them.
Check spelling
Misspelled words in text you add get a red underline. Document → Text & spelling → Check spelling lists them all with corrections, and you can add words to your own dictionary.
Arrange the window
Drag the dividers beside the page to resize the panels, or keep going past the end to fold one away; double-click a divider to bring it back. Drag the dotted grip on the tool row to put the tools under the page. Reset layout is in Document → Settings.
Your work is kept as you go
A working copy of the open document is stored in this browser on this computer, so a crash or a closed window does not lose it. Reopen KAM PDFs and it offers your last session back. Nothing is uploaded. Turn it off in Document → Settings.
Updates
When you are online, KAM PDFs checks once when it opens for a newer version and offers it in a green bar. Update now installs it and restarts, keeping a working copy first. Only the version number is ever asked for.
Links and bookmarks
Hover a link in the PDF to see where it goes, and Ctrl+click to follow it; on a touch screen, tap it and then the button that appears. Bookmarks, beside Pages, lists the document's outline. Bookmark this page adds one where you are; double-click one to rename it. They are saved in the PDF.
Password-protected PDFs
Open it as usual and type the password when asked. It is only used here, on this computer, and is not kept. A PDF that is only protected against changes opens straight away. The copy you save opens without a password.
On a phone or tablet
The page gets the screen. The buttons at the top slide in the pages and bookmarks from the left, and the Document panel from the right. One finger scrolls, a double tap edits, and two fingers zoom the page.
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