How to convert PowerPoint to PDF for sharing

For sharing, keep one slide per page and leave speaker notes off if the recipient only needs the slides. Set a clear file name, check fonts and links, and compress the PDF if it is too heavy.

Open PowerPoint to PDF when a presentation has to go to a colleague, a client, or a teacher. The recipient can open the PDF without PowerPoint, on a phone or in a browser, and will see the slides exactly as you checked them. Text in the result stays text: it can be selected and found with search.

This guide is about sharing and on-screen reading. If you need printed handouts with two or four slides on a sheet, see the separate guide to printing presentations. Keep the PowerPoint source: in the PDF you can no longer fix a figure or run an animation.

Prepare the presentation before uploading

Go through the slides in order and check dates, names, and final figures. Remove working slides, comments for colleagues, and draft remarks written on the slides themselves. Leaving notes switched off does not hide information already typed into a text box or pasted as a screenshot.

Hidden slides are skipped during conversion. If the recipient needs one of them, unhide it in PowerPoint and save the file again. The reverse also applies: a draft slide that must not reach the recipient is safer deleted from the copy than merely hidden.

The tool accepts PPTX and legacy PPT. For the legacy format the options are not applied: the file is converted as-is, and if you changed the settings you will see the warning "Legacy file formats (.doc/.ppt/.xls) are converted as-is…". To control the layout and notes, open the presentation in PowerPoint and save it as PPTX. Renaming the file extension does not change the format.

The service won't accept a presentation that has a password to open: the upload fails with a file format error. Remove the password in PowerPoint itself: File → Info → Protect Presentation → Encrypt with Password, clear the password field, save a copy, and upload that copy.

Which settings to choose for sharing

The settings block has three fields. "Slides per page" defaults to 1, and for sharing you should leave it there. Each PDF page keeps the proportions of the slide, so on a computer screen or a phone turned sideways the slide fills the window and small chart labels are readable at normal zoom.

The values 2 and 4 are meant for printing. With 2, the sheet is turned: two wide slides sit one above the other on a portrait page and shrink to 56% of their width and height for 16:9 slides, or to two thirds for 4:3. With 4, the sheet stays landscape like the slide, and each slide is reduced to half its width and height. So "2" gives larger slides than "4", but smaller ones than a single slide per page. The printing guide covers the layout in detail. The layout does not reduce file size either: most of the weight comes from images, and they stay in the PDF whatever the number of slides per page.

You can fill in "Output file name" right away. If you leave it empty, the result is named `powerpoint_to_pdf_<source name>.pdf`. For an email, a short name with a date or version works better, for example "q3-report-v2". Leave the "Include speaker notes" switch off if the recipient needs only the slides, then click "Process file".

How speaker notes look in the PDF

Notes are not included by default. If you turn on "Include speaker notes", they do not appear under each slide. All the slides come first, and after the last one the PDF adds separate portrait notes pages: each shows a small copy of the slide at the top and its note text below. The page count doubles, so twelve slides become twenty-four pages.

This format helps when the recipient reads the deck without your talk and the notes explain the slides. Reread them before sending: notes often contain reminders to yourself that were never meant for anyone else.

Do not combine notes with 2 or 4 slides per page. The notes pages go into the same grid right after the slides, and if the last sheet of slides is not full, the first of them land on it. The sheet and the grid are sized for the slides, not for portrait notes pages, so the notes shrink along with the slides: their text becomes one and a half to two times smaller at 2 per page and almost three times smaller at 4, which makes it hard to read.

Occasionally the notes export fails. The PDF is still created, but with slides only, and you see the warning "Speaker notes could not be exported…". If the notes matter, check the page count of the result, not just that a file appeared.

Example: a quarterly report before sending

Say the presentation has twelve slides, slide four holds a sales chart with a legend, and the last slide lists contacts. The steps:

1. Save the presentation as PPTX and finish any pending edits. 2. Upload the file to the tool. 3. Keep "Slides per page" at 1 and type a file name. 4. Click "Process file" and read any messages under the result. 5. Download the PDF and open it in an ordinary viewer. 6. Check the page count: twelve without notes, twenty-four with them.

Then open page four and zoom to 200%. Axis labels, values, and the legend should be readable without guessing. Scroll to the end and make sure the contacts on the last slide are there. Sidebar thumbnails are not enough for this check: they do not show a substituted font or a missing symbol.

Fonts, animation, and links: what to check

The conversion runs on the server through LibreOffice, not PowerPoint, so complex formatting can differ from the original. Common Office fonts such as Calibri, Cambria, Arial, and Times New Roman are replaced with equivalents that have the same letter widths, so lines usually stay where they were. A brand or rare font may be swapped for another one: a heading then becomes wider and wraps onto a new line. If you notice this, switch to a common font in a copy of the deck or insert that heading as a picture.

Animations do not play in a PDF: the page shows every object on the slide at once, including those that appeared on click. If the animation had items replacing each other in the same spot, they will overlap in the PDF. Video does not play either, so if a clip matters, add a text link to it on the slide.

Hyperlinks in slide text carry over to the PDF and stay clickable. Click each one before sending, because the address may already have been outdated in the presentation. If the service reports that it produced a simplified text-only PDF, that file is not fit for the recipient; try the conversion again later.

File size and sending by email

The size of the PDF depends mostly on photos and screenshots. If the source is heavy, shrink the images in PowerPoint first: Picture Format → Compress Pictures. This preserves the design better than compressing the finished PDF.

If the PDF is still larger than your email service or an upload form accepts, open Compress PDF and turn on "Fit a size limit" with the limit you need. After compression, zoom into the charts and small text again, because strong compression makes photos less sharp. If the email still will not send with the attachment, see why a PDF will not attach to an email.

Send the copy you opened and checked last. If you changed anything in the presentation, convert it again instead of sending the old PDF.