DartPDF
Edit, annotate & sign PDFs
Free
DartPDF is a PDF editor that runs entirely on your device.
Open any PDF to mark it up, fill in forms, sign it, redact content, rearrange pages, or edit the text and images on the page. Changes save back to the original file.
Nothing is uploaded. There's no account, no sync, and no ads.
Features:
• Highlight, underline, strikethrough, and freehand ink
• Shapes, arrows, text boxes, notes, and stamps
• Edit existing text and add images
• Redaction that removes the covered text and images from the file, not just from view
• Fill form fields (text, checkboxes, radio buttons, dropdowns), or add your own
• Drawn signatures placed anywhere, plus certificate-backed PAdES digital signatures
• OCR scanned PDFs so text can be selected and searched
• Reorder, delete, and export pages to a new file
• Full-text search, text selection, and links
• Compare two versions side by side
• Open password-protected files
Runs on iPhone, iPad, and Mac. Opens PDFs from the Files app, share sheets, or drag-and-drop. Light and dark themes.
more New in 6.0.0
- Select page text with the Select tool; double-click a word in Hand mode.
- Reader controls share one header.
- Faster page rendering with lower memory use.
- Fix missing detail after zooming quickly.
6.0.0 10 hr ago
New in 5.1.1
- Ink written in quick succession no longer disappears from the page.
- Includes all the improvements from 5.1.0.
5.1.1 4 days ago
New in 5.1.0
- Draw your signature with a finger on the trackpad.
- Annotation lists show each mark as it looks on the page.
- On touch screens, row actions move into a ⋮ menu.
- Moved stamps no longer leave a white box on the page.
- Fixes page edits that could drop a page in some PDFs.
- P-521 digital signatures now validate.
- Faster encrypted files, signature checks, JPEG 2000 and large drawings.
5.1.0 5 days ago
New in 5.0.0
- Forms calculate totals, format values and check what you type.
- Tab between form fields; pick several items in list boxes.
- Form passwords stay in secure device storage, never in the PDF.
- Create radio buttons, drop-downs, list boxes and signature fields.
- Sign password-protected PDFs.
- Revocation checks for signatures; EU and optional Adobe trust lists.
- Calibri text from Office documents now looks right.
5.0.0 24 Sept
New in 4.5.0
- See what's new in each release under Settings > About.
- Sharper PDF text and line art on Linux.
- Exported pages open in a new tab.
- Switch between pages, reflowed text and the page grid from one control.
- Correct letter spacing for text in unembedded standard fonts.
- Better text selection across columns and in Chinese, Japanese and Korean.
- Outlined text now draws clearly.
4.5.0 16 Sept
New in 4.4.0
- Print directly on Windows, and keep your print settings between jobs.
- Zoom in to 10000%, with presets for the closest views.
- Open and scroll dense vector drawings faster.
- Select and search text sooner on heavy pages.
- Set vertical alignment for text form fields.
- Show the saved file in File Explorer after a Save As.
4.4.0 16 Sept
New in 4.3.0
- Reduce PDF file size with new optimization presets.
- Merge and split documents, and erase selected page content.
- Find tools quickly with the command palette.
- Choose more print layouts and page options.
- Copy and paste vector snapshots between documents.
- Fix scanning and improve mobile document controls.
4.3.0 7 Sept
New in 4.2.0
- Keep nearby pages sharp while scrolling slowly, using spare graphics capacity.
- Place annotations precisely with new alignment guides and page rulers.
- Zoom around the pointer with Ctrl or Cmd and the mouse wheel.
- Fix annotation editing on rotated pages and selecting multi-line highlights.
- Pan between lines of text instead of starting a selection.
4.2.0 6 Sept
New in 4.1.0
SIGNATURES AND REUSABLE CONTENT
- Save and manage multiple named handwritten signatures, with previews and quick selection.
- Keep a searchable library of reusable annotations and place them across documents.
- Select and remove visible digital signatures with confirmation and undo.
PRECISION EDITING
- Add horizontal and vertical cursor guides, show a page grid, and optionally snap annotations to it. Hold Alt to bypass snapping temporarily.
- Reposition selected PDF content within a page or drag it to another page.
- Reach every page with the colour eyedropper and open it directly from the colour dialog.
PERFORMANCE AND RELIABILITY
- Render large engineering drawings, complex blends, transparency groups, overprint, images, and fine linework faster and more accurately.
- Import digital-signature keys and certificate chains more reliably, and show new signatures immediately after signing.
- Fix sparse remote-PDF loading and a colour clipping error that could display a blank page.
4.1.0 2 Sept
New in 4.0.0
- Slimmer, dockable editor controls and improved page and recent-file navigation.
- Auto-fit text boxes and flatten selected annotations; empty form fields now flatten correctly.
- More accurate color, overprint, transparency, soft masks and fonts in demanding PDFs.
- Faster GPU rendering, smoother deep zoom and cleaner drag-and-drop, scanning and file-opening workflows.
4.0.0 26 Aug
New in 3.8.0
- Browse recent PDFs with searchable page previews.
- Place and edit annotations beyond the page edge, restyle mixed selections, and choose any signature color and pen thickness.
- Preview print jobs before sending them.
- Enjoy smoother scrolling and deep zoom on large drawings, plus fixes for text caret alignment, popup placement, and rendering crashes.
3.8.0 23 Aug
New in 3.7.0
- Pages render as you scroll instead of arriving after you stop, and pages you have already read come back instantly.
- Find and replace in the search panel: replace one match or all of them in a single undo step.
- Fixed scrambled text and wrong edits in the content tool on documents with subsetted fonts.
- Fixed a crash when opening or saving a file.
3.7.0 19 Aug
New in 3.6.0
- Annotation panels are easier to navigate, keep selections visible after edits, and preserve text-box opacity.
- Bluebeam text boxes retain their alignment, spacing, and caret position.
- Multiple document windows now support dragging tabs between them.
- Substituted text has more natural spacing, with fixes for stale pages and cloud-folder reveal actions.
3.6.0 15 Aug
New in 3.5.1
- Scanned MRC and JBIG2 pages now keep their text, background, and mask layers.
- Soft-masked images no longer render as black blocks with Impeller or the optional GPU renderer.
3.5.1 14 Aug
New in 3.5.0
- Large and highly detailed PDFs stay responsive while scrolling, panning, and zooming, and sharpen the visible area first.
- Page previews progress through clearer detail levels during fast navigation.
- Pages stay sharp and visible near viewport edges.
- Faster remote document loading with more predictable memory use.
3.5.0 13 Aug
New in 3.4.0
• Copy and paste annotations between open documents.
• Drop PDFs between page thumbnails to insert pages exactly where you want them.
• Save placed stamps back to your stamp collection and see selected annotation colours in the toolbar.
• Text selection and substituted-font rendering now align more precisely.
• Faster tab grids, smoother trackpad zooming, safer progressive file access, and more reliable print previews.
3.4.0 9 Aug
New in 3.3.0
• Pages you revisit open instantly, with optional background warming and persistent full-resolution caching.
• Sharper deep zoom on scanned and image-based PDFs.
• Better touch panning, rectangle corner-radius controls, and smoother inserted-page navigation.
3.3.0 2 Aug
New in 3.2.0
• Faster, steadier viewing with memory-aware page caching and less duplicate rendering.
• Better FreeText and callout compatibility, plus more precise selection of multi-line markups.
• Fixes loading pauses, remote-session restore delays, and Ctrl/Cmd-wheel zoom after constrained drawing.
3.2.0 29 Jul
New in 3.1.0
SCAN AND CAPTURE
• Scan paper documents straight into a PDF — start a new document from a scan or insert pages into the open file.
• Take a photo with the camera and add it to your document.
PEACE OF MIND
• Unsaved changes are mirrored in the background and restored after a crash, so your work survives.
NEW TOOLS
• Add hyperlinks to the web or to another page in the document.
• Crop placed images and pasted pictures.
• Lock annotations against accidental edits, and unlock them when needed.
• Every editing tool now has a keyboard shortcut.
• Search now finds text inside your notes and annotations, too.
RENDERING
• Overprint now renders faithfully, so print-oriented PDFs with knockouts and spot inks look the way they print.
• Pages reveal progressively as they render — much faster on large or image-heavy files.
• Recent files can show as a grid of page thumbnails.
• Shrink a PDF's file size losslessly when saving.
Thank you for using DartPDF. Feedback and bug reports are always welcome.
3.1.0 27 Jul
New in 3.0.0
LANGUAGES
• DartPDF is now available in 10 languages, with full right-to-left layout for Arabic.
RENDERING
• More accurate overprint, blend-mode and soft-mask rendering, so print-oriented PDFs look closer to their intended output.
• Transparency groups drawn under a blend mode now composite correctly, fixing stray opaque boxes on some files.
EDITING
• Hold Shift while drawing to constrain ink and lines to straight strokes.
• Set a default style for annotations and reuse it with one tap.
• Redesigned document tabs that stay readable as you open more files.
SPEED
• Faster rendering and lower memory use, with the biggest gains on large or image-heavy files.
Thank you for using DartPDF. Feedback and bug reports are always welcome.
3.0.0 24 Jul
New in 2.1.0
READING
• Reflow reading view: read a document as flowing text instead of fixed pages, with lazy scrolling through long files, quick navigation, a reading position that is remembered, and a figure viewer for tapping through images and diagrams.
SPEED AND MEMORY
• Documents open and render noticeably faster, with the biggest gains on large or image-heavy files.
• Saving an edit is now proportional to the size of the change rather than the size of the document, so edits stay fast in long files.
• Lower memory use on very wide drawings, which now keep only the visible portion of the page in memory as you pan.
• Faster decoding of scanned black-and-white documents.
RENDERING FIXES
• Fine linework stays crisp and legible when zoomed out, instead of fading away — a difference you will notice most on drawings and plans.
• More accurate colour in gradients, including radial gradients that previously showed only a partial shape.
• Correct colour for indexed images, including those built on JPEG 2000, Separation and DeviceN bases.
• Symbol and ZapfDingbats characters now render properly instead of appearing as empty boxes.
• Sampled colour functions with multiple inputs are evaluated correctly.
Thank you for using DartPDF. Feedback and bug reports are always welcome.
2.1.0 21 Jul
What's new in 2.0.0
• Sharper deep zoom: pages re-render at full resolution instead of blurring.
• Large documents open faster: the first page appears while the rest loads.
• One-tap digital signing: create a signing identity right in the app.
• A customizable panel layout that's remembered between sessions.
• The font menu shows the document's own fonts and your recent picks.
• Multi-select in the annotation list and better CMYK colour accuracy.
2.0.0 19 Jul
- Hover a document tab on desktop to preview the page before switching to it, and open a grid of all open documents to jump between them.
- Edit, style, and markup actions are now offered directly when you select text in a document.
- Arabic search now matches text copied out of a page, marks and vowel signs stay attached to their letters when selecting or copying, and pasted Arabic renders with a bundled font.
- Large scanned pages open faster and use less memory.
1.4.6 16 Jul
Faster, sharper viewing for large CAD and illustration PDFs with adaptive retained rendering and off-thread processing.
Adds callout annotations and rich-text styling for in-place document edits.
Recent files now reopen reliably on mobile.
1.4.1 12 Jul
- Added PDF bookmarks with create, edit, delete and navigation.
- Added document color processing and color replacement.
- Improved stamps, annotations, eraser and page tools.
- Added recent files and better shortcuts/menus.
- Improved large-document performance, file opening and stability.
1.4.0 7 Jul
New in 6.0.0
- Select page text with the Select tool; double-click a word in Hand mode.
- Reader controls share one header.
- Faster page rendering with lower memory use.
- Fix missing detail after zooming quickly.
more Version 6.0.0 10 hr ago
Data Not Collected The developer does not collect any data from this app.