PDF Best Practices: Creating, Editing, and Sharing Documents That Work Everywhere
PDF (Portable Document Format) was created by Adobe in 1993 to solve a specific problem: sharing documents that would look identical regardless of the operating system, fonts, or software installed on the recipient's device. Thirty years later, PDF remains the standard for documents that must be preserved exactly as the author intended — contracts, official forms, academic papers, and print-ready materials. Despite its ubiquity, many users create PDFs that are unnecessarily large, visually incorrect, inaccessible, or difficult to work with. Understanding PDF best practices saves time and prevents frustrating surprises when documents reach their intended recipients.
Font Embedding and Visual Consistency
The most common reason a PDF looks different on the recipient's screen than on the author's is incorrect font handling. If a PDF references a font that is not embedded in the file, the PDF viewer substitutes a different font that may have different character widths, causing text to reflow and lines to break differently. Always embed all fonts when exporting to PDF. In Microsoft Word, this is controlled in Save As settings. In Adobe InDesign, the default is to embed all fonts. In LibreOffice, the PDF export dialog includes an option to embed all fonts. For documents using specialized or licensed fonts, embedding ensures the document is self-contained and does not depend on the recipient having the same fonts installed.
File Size Optimization
PDF files can become unnecessarily large when they contain high-resolution images intended for print that will only be viewed on screen, when images are embedded as uncompressed bitmaps rather than compressed JPEG or PNG, when the PDF contains embedded thumbnails that duplicate content, or when a scanned PDF has not been processed to remove blank pages and reduce scan resolution. For documents intended for email distribution or web download, run them through a PDF optimizer before sending — Adobe Acrobat Pro, Ghostscript (free), and several online tools can reduce file sizes by 50-80% without visible quality loss for screen viewing. Specifying "optimized for web" when exporting also enables progressive loading that allows PDFs to begin displaying before the full file is downloaded.
Interactive PDFs: Forms and Digital Signatures
PDF supports interactive elements including fillable form fields (text inputs, checkboxes, dropdown menus), digital signatures, and embedded JavaScript actions. Fillable PDF forms are widely used for official forms, HR documents, and customer onboarding materials — they allow recipients to complete fields without printing, and can be configured to validate input and calculate values automatically. Digital signatures (distinct from scanned signature images) use cryptographic keys to verify the signer's identity and detect subsequent document modifications, providing legal non-repudiation in many jurisdictions. Creating these features requires either Adobe Acrobat Pro or free alternatives like LibreOffice for forms and open-source tools for PDF signing workflows.
Free Tools for Editing and Manipulating PDFs
Commercial PDF editing software is expensive, but most common PDF manipulation tasks can be accomplished with free tools. Splitting a multi-page PDF, merging multiple PDFs, rotating pages, reordering pages, and extracting specific page ranges are all possible with PDFtk (command line), PDF24 (free web-based), or Smallpdf (limited free tier). For editing text and graphics within an existing PDF, LibreOffice Draw opens PDFs with reasonable fidelity for minor edits, though complex PDFs may not render or edit correctly. For extensive text editing of existing PDFs, converting to an editable format and re-exporting often produces better results than trying to edit the PDF directly.
LibriDocs supports PDF export and document sharing. Visit our platform to manage your documents, or get in touch with questions about document workflows.