Edit text without breaking layout
Open the Edit PDF tool, select text, and adjust font, size, and color. Keep zoom around 125% for precise selection and save incrementally to avoid inflating file size.
Annotate and highlight fast
Use the Annotate tool for rectangles and sticky notes. Keep opacity near 0.3 for highlights and 0.8 for notes to retain background legibility. Export stays local to your device.
Merge or split cleanly
Combine files in Merge PDF and reorder pages before downloading. Use Split PDF for extracting ranges so you only export the slices you need.
Sign securely
Use Sign PDF to draw or type your signature. Place once, duplicate across pages, then export. Everything runs client-side for privacy.
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Step-by-step tutorial to edit PDFs online for free: upload, add or remove text, highlight, insert images, annotate, and export while keeping the original fonts.
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How to Make PDFs Smaller Without Losing Quality
Practical tactics to shrink PDFs: smart image compression, font subsetting, and avoiding bloated re-saves.